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Mikeyy1992
Group Title
Help? Please and thank you! What is the y coordinate of the y−intercept of the line that passes through the points
(−3, −1) and (1, 7)?
 one year ago
 one year ago
Mikeyy1992 Group Title
Help? Please and thank you! What is the y coordinate of the y−intercept of the line that passes through the points (−3, −1) and (1, 7)?
 one year ago
 one year ago

This Question is Closed

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
3 1 1 7dw:1377494318035:dw
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
You have to find the slope of the line!
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Slope is...\[\frac{ RISE }{ RUN }\]
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Lagging is my life.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
would that be equal to 1/2 for slope? or no?
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Right:)
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Well, what is my question asking for? the y coordinate?
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Little confused..
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Yes! To find where the line crosses the Y axes!
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
2, 0? Random guess. Lol
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
\[y – y _{1} = m(x – x _{1})\]
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Now using that formula I gave you plug in one of the Points that are given and solve for y.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
1 + 7 = m(3 + 1)
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Not exactly...Only use one set of points and plug it into the y and x with a tiny 1...
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
More like... y+1= M(x+3)
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
And M means slope so plug that in too!
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
y + 1 = 1/2(x + 3)
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Yup, now solve for Y.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
y = 1/2x + 1/2 ?
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
This form is call slope intercept form. To find y plug in 0 for X.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
y = 1/2(0) + 1/2 y = 1/2 ?
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
(0,1/2)
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Now, this will be tricky to put in the written response, because fractions turn from 1/2 to 12. Lol. Should I just put 0.5?
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Wait...before you write it lets check it...cause something doesnt seem right...
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
I feel like it should be a whole number, my teacher said it should be for these ones.
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
I think is should be (0,5)...
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
@mathstudent55 Maybe they know if we did anything wrong.
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
I figured out!
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
@Luigi0210
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
The slope is 2!
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
we have to redo that with the slope of 2.
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Because its Y/X not X/Y.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
OpenStudy is lagging for me.
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Its okay! it is (0,5)
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
\[y+1=2(x+3)\]
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
\[y=2x+5\]
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
@Luigi0210 I really need to know if he's right. I'm so confused.
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
Sorry for confusing you...:(
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.1
http://www.webmath.com/_answer.php Its right, check...
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Only if OpenStudy was a real person...
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
So you're just looking for the ycoordinate of the y intercept?
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Well you know that the yintercept is when x=0 right?
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Yes, but now I don't even know what the slope is anymore. 1/2 or 2 or 5 lol.
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Slope is: \[m=\frac{y2y1}{x2x1}\]
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
3, 1 1, 7
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
1  7  3  1 ?
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Just plug them in and solve. and either way works, you get the same answer
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
8  4 ?
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Yup, making the slope 2. Now we plug that information into the pointslope formula: yy1=m(xx1)
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Open was right so far, except for the slope
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
y  1 = 2(x  7) ?
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Yea, not just distribute.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
y = 2x  13?
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Now what?
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Now we find the yintercept Meaning that we plug in where ever there is an x. This will give us the y value we are looking for.
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
What do we use for x? What number?
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
0 = 2x  3?
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
13......let me type please OpenStudy please...
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Ah, plug 0 in for x, not y
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
y = 2(0)  13 y = 13?
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Yup, and that's it Mikeyy :)
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
I feel like that would be one weird yintercept from where the two dots are on a graph..
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Your ordered pair is (13, 0)
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
*(0, 13)
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Alright thanks :P
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Mikeyy..
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
Lol. Answer wasn't 13 but I still got a 88. and I have a chance to get a 90 with my written response...
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Yes I was about to say that.. sorry buddy :( I just realized that we used the wrong points for the pointslope formula.
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
The answer was actually (0, 5) and the equation was y=2x+5
 one year ago

Mikeyy1992 Group TitleBest ResponseYou've already chosen the best response.0
It's fine. I had to get over a 60 and I did. So, I'm happy. I need to get off OP before it screws me another time. thanks again
 one year ago

Luigi0210 Group TitleBest ResponseYou've already chosen the best response.1
Alright, and you're welcome :)
 one year ago
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