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i will try my best :)
Thank you! Give me a few seconds.
1st Q: http://prntscr.com/7a1nki
If you don't know it, it's fine, we can move on if you'd like :)
I'm in algebra 2 as of now and I'm not sure of the answer lol
Okay! No problem. (I'm in Algebra 1) Let me get out the next Q.
It would be A. you want an explanation?
Yes, please :)
ok so the shaded part of the graph would all be correct answers
and A is the only ordered pairs within the shaded part
Oh okay, so by trial and error, one can get the correct answer easily. Thank you!
Q.3: http://prntscr.com/7a1r4w Are they asking for the rate of change?
I don't think so
im pretty sure its C.
Why is that?
because when i plugged in the numbers into the equation they equaled eachother
5 is plugged into h(5) =
That's a great way to solve this one! so if I plugged in 0 for x, I would get 5/1 = 5 and if h(x) = 5, then the equation is true. Thanks
and 0 is plugged into x
http://prntscr.com/7a1ssa I was thinking it's either the peak or the left part
(Those are the only parts that make the function non-linear)
So it's either A or B
But then C also describes the peak
or no sorry not C
Precisely... but they're asking for an interval, so it can't be C
Ya its a or b im not sure which one
I think it's A mainly because the function would have been in a triangle shape if not for the discontinuation of the left part.
ya i was just about to say that as well
i would go with A
Okay! http://prntscr.com/7a1uuj (Let me know when you're sick of answering my Q's) :)
so 24 = x/3
then you would do inverse operations
and get x = 72
Okay, like cross-multiplication. So it would be 24 * 3 and x * 1?
ya that would work too
it would be 24 * 3 = x * 1
So 72 = x! Meaning answer is D?
you forgot the equal sign
What is the pattern of this sequence? http://prntscr.com/7a1wqe
Do you have any ideas what the pattern might be?
Yes: from -2 to 3 it goes through an interval of 3. From 3 to 1 it's 2, from 1 to 4 it's 3, from 4 to 5 it's 1 and from 5 to 9 it's 4. I don't see an ongoing pattern.
yeah im not sure on this one sorry:(
No problem! :) Next one: http://prntscr.com/7a1z2r
I think it's A.
Yes it is :)
(5, 40) because x represents hours (independent value) it's all about interpreting the graph into a real world problem.
http://prntscr.com/7a1zt7 Disregard the answer I chose, it was by accident.
Yep and might I say u seem really smart btw you type lol
so your in like AP algebra 1 im guessing?
There isn't an AP Alg 1.. is there? I'm in honors
there is in some schools but I think its A but im not sure
I understand :)
Next question? or are we still on this one?
I believe that the answer to the one I just asked is either A or B
Oh it's above :)
Now that I look at it more I dont think its A because its saying its greater than or equal to 24,000 when it should be it's less than or equal to 24,000 right?
And B would eventually exceed 24,000 if im not mistaken
Since the value of the car is a decreasing exponential function, I agree with your points.
I think it is C. actually
But wouldn't the 'y' represent range instead of domain?
thats also what i was thinking as well but its the only one that makes sense i think
or no cause its also greater than or equal to
either there's a mistake with the question or we are missing something lol
Hmm.. you're right. Perhaps this Q doesn't have a correct answer at all. There are a couple of other Q's on this homework that are inaccurate, too.
oh ok then that must be it
http://prntscr.com/7a2622 (Again disregard the answer)
Ya its C
since its asking for the Y values (or range values)
This was such an easy question. I guess the concept of domain and range to me isn't very clear but I understand now. (Silly me)
http://prntscr.com/7a2796 http://prntscr.com/7a27c5 (It wouldn't fit into my screen)
Its A. since it said constant rate that means it has to be a straight line and also it has the ordered pair (5, 300) :)
Right. It's linear.
Are you still willing to help? I know that your time is precious.
Yes I am still willing to help i just do my homework while helping others :)
I should try that strategy, too. Just know that even though we don't know each other, I can tell you're very kind-hearted taking the time out of your day to serve others for nothing much in return. It's truly appreciated.
Thank you for that and no problem :)
With that said.. http://prntscr.com/7a28mg
It is A.
Because the x-intercept is when y = 0, right?
And vice versa for the y-intercept.
yes thats correct
Or its B sorry
I'm pretty sure this is correct, but just in case I wanted to check it with you. And why would it be B?
because when you set y equal to zero then that goes away leaving you with x = 12
because -6(0) = 0
Right. Sorry I didn't see that error either.
I'm not sure what zero of this function means?
It means when y is set to zero
Also known as the x-intercept
So its D then right?
I got the answer by looking at the graph, but it shouldn't be that easy. The f(x) = x/2 - 4 is also throwing me off a bit
well the equation f(x) = 1/2x -4
When x = 0 the y is -4
and if y = 0 then x = 8
Horrible homework makers
but im pretty sure its asking for the x-intercept
http://prntscr.com/7a2e21 You're right
They're asking for the x-intercept. So it would be D.
4 would work
Since it's absolute value, the answer would ultimately be positive,
but 20/3 would not since it would make a decimal
You're right.. again! It can't be the other options either
and the other numbers are way to big
so theres no answer..... lmao
Another mistake.. I'm totally going to contact my teacher about this
yeah you definitely should :P
I have very few left
I could graph this one OR calculate its vertex and ultimately maximum point.
Ya either one of those methods would work i would prefer calculating to find the maximum point just saying
Yeah, we won't always have access to graphing calculators on the exam.
because your not allowed or you just dont have one?
So vertex formula is: x = b/2a, right?
Or maybe I mixed it up
its -b isnt it?
Right! -b/2a = x
b = 300 and a = 5
-(300)/2(5) = -300/10
Hmm... answer choices don't match up
it would be 300/10 wouldnt it?
No it's negative because of the "-b"
for the x side
and its also a negative 5 so
it would end up being 30 = 30
if im not mistaken
Okay so it's official that I'm stupid. Thank you for pointing the negative sign of the 5. I didn't see it. So the answer is B = $30.
and your very smart :P
http://prntscr.com/7a2ley I don't think so.. math is one of my weaker subjects haha
The formula for exponential increase is: f(x) = Initial Value(Rate)^x
But I also recall a (1 + r) rate to an exponential function
http://prntscr.com/7a2mow <--- This is just a picture. I think that I learned this back in 7th grade about interest, so I believe that my answer is correct.
the r is if there is an interest rate
or no disregard that statement lol
Ah, okay. So what are your thoughts?
I think its C and ill explain
.22 is 22% but 1.22 would be 120% and you would want 120% because it would take the initial population and add the 22% to it as just 22% would only complete half of the problem. do you undersatnd?
sorry if i didnt explain that well enough lol
Yes, I completely understand where you're coming from. But wouldn't 120% of a growth be too much of a population growth? In a real-world scale, it's not very probable, but then again, in math anything is possible in the real world lol
oh your completely right since A (the initial population) is already in the equation.
my bad :P
So yes its A
Yes! I outsmarted the wise one
:) Jk jk
trust me its not too hard to outsmart me at times :P
http://prntscr.com/7a2r8m I doubt it!
is D. y = 88x? or is it just y - 88x? lol
D. is y = 88x
I think what they're doing is the simplified version of 40/880
So It would most likely be B
Yes that is correct
i wouldn't to try and outsmart you if math is your weaker subject :P
you mean divided by 20 right?
No, by 2… it's kinda how I simplify fractions in my head
I cancelled out the zeroes
oh yes i understand ok lol see i told you its not to hard to outsmart me :P
Same answer lol
for sake of me learning now lol why is the 40 the numerator and not the 880?
you dont have to explain if you dont want to :P
Oh pretend that it's not a fraction.. I just divided both numerator and denominator by 40.
I usually write it that way, but in my prior drawing, I wrote it by adding in small 2's so you wouldn't get confused, sorry, my mistake haha
no i understand that but for the equation why is it 40/880 and not 880/40
Oh! It was the most logical way to go in my opinion. But you bring up a valid point.. or else it would've been 22/1.
im not sure which way it should be set up
Hours is an independent value. Time is always an independent variable. x ALWAYS represents independent values because the y is dependent. Does that make sense? Since Mrs. Marez worked for 40 hours, then 40 would represent x. Usually it's x/y, because it represents the relationship between both x and y. However, the rate of change is: y2 - y1 / x2 - x1
In other words, it's y/x… so now I'm truly split between this
I believe that the relationship refers to slope.
ok so lets just say the answer is y = 22x. it says last week she earned $880 and its asking for her weekly earnings. so if we multiplied 22 by 40 that would equal her weekly income of $880. now if we multiplied 1/22 by 40 that would be 1.8
So im pretty sure it is B now lol
does that make sense?
Definitely. (See, you outsmarted me again)
hahaha that seemed harder than it should have been
Another sequence problem ^^
i would guess B
I would guess either C or D because B would be the 6th value.. not the 8th
but im not exactly sure what the pattern is
so u think the fractions are multiplying by 2?
The last three have a pattern and the first two have a separate pattern
i saw that as well
so D then correct?
I think D is the answer
ya and the numerator is multiplying by 2
Brb for 5 mins
just tag me in the chat when you're back :)
I sincerely apologize @Chumpian my internet connection was reset
I have 5 or 6 Q's left if you're up for it
im up for it :)
Thank you! http://prntscr.com/7a3hj7
Please disregard the answer I chose.. it's a random guess as I didn't look at the Q
It's C right?
Ya it's C
Let me check
Yup! It's C.
http://prntscr.com/7a3kpt I put the #'s in order
School A: 1300, 1350, 1350, 1370, 1400 School B: 1300, 1350, 1375, 1400, 1410
C is correct for the first part
I think #45 and #46 are separate Q's and aren't two part Q's
ok i thought so as well
Is #46 D?
I'm not sure
Wait no it says least likely to be a normal distribution, so it's either A or B
It would be B then right?
How old are you just curious?
Not sure because it can't be a normal distribution if they're asking for 14-year old girls outside New York.. meaning everywhere around the world.
I'm 12 but I take advanced class and skipped two grades
im embarrassed now lol
Why? No need to be but how old are you?
Most of my friends are 15+ haha
and your just as smart if not smarter than i am lol
I don't think so… you have more experiences being older than I am. Although you may be in Alg 2 (assuming you're in 10th/11th grade) you still take other courses that are totally not equivalent to an 8th graders'.
true true but back to the Q im not sure what it is :(
It's fine! I put in A. http://prntscr.com/7a3qw7 Last question and you're free of me! :)
It would be D :)
Yup! Just checked. Thank you so, so much.
Just tag or message me if im on if you want any help
I'll let you know what I get in about 10-15 mins (only if you want to) as I do the other Q's :) Have a great rest of the day!
ok you too :)