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 2 years ago
Which of the following inequalities matches the graph? (see attached photo)
A y _>_3x  5
B y < 3x  5
C y < 1/3x  5
D The correct inequality is not listed.
 2 years ago
Which of the following inequalities matches the graph? (see attached photo) A y _>_3x  5 B y < 3x  5 C y < 1/3x  5 D The correct inequality is not listed.

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srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Alright, so lets pick up where we left off. Can you find two points on the line?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Yup, that's one, good job.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Can you find another one?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Well, go over to 2 on the x axis, and then go up until you hit the line. What y are you at? That's how you get a point.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Not quite, although the drawing isn't too great. (2,1) is on the line.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Do you see how that works?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Great! So now, do you remember how to find the slope?

ilovenyc
 2 years ago
Best ResponseYou've already chosen the best response.0To find the slope m of the line segment joining the points, use the slope formula

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Right, so try doing that with (2,1) and (4,7)

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Making any progress, or do you need some help?

ilovenyc
 2 years ago
Best ResponseYou've already chosen the best response.0need some help do i add those both together?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Not quite, it's more of a subtraction. Here's the slope formula: \[\frac{y_2y_1}{x_2x_1} \; \; \; x_1 = 2 \; \; \; x_2 = 4 \; \; \; y_1=1 \; \; \; y_2=7 \]

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc So see if you can use that to find the slope. I'll be back in just a little bit.

ilovenyc
 2 years ago
Best ResponseYou've already chosen the best response.0@srossd so i need to subtract that

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Just use that formula I wrote, plug in the numbers. And now I'll be back in a little bit :).

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0No, here's another hint: \[\frac{71}{42}\]

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0And ok, now I'm actually leaving for a little bit.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Just a few minutes, though.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Alright, I'm back now. So did you get the slope from that?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0So the slope ends up being 3.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc So now you know that the line will be y=3x+b. So plug in x = 0 to that, and you'll be y=b. So look at the graph, and go to the point where x=0. Find what y is.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0The drawing is bad again, it's actually 5. But close enough that I'm pretty sure you get it.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0So if your equation was y=3x+b, and b=5, what's your final equation?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0No, no  just plug in the value of b (5) to y=3x+b. The x and y should stay.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc Do you understand, or do you need some help?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Ok, so you solved for b, so just put it where b was. The equation comes out to be y=3x5.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Do you see how that works, plugging in 5 for b?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Actually, it's A, since everything above the line is shaded. B would be the opposite shading.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0And again, sorry for elongating this so much  I just wanted to make sure you understand how to do it.

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc So do you feel like you have a good grasp on how to do this type of problem now?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Alright, good. I can make up another one for you to try if you want.

ilovenyc
 2 years ago
Best ResponseYou've already chosen the best response.0well i have more problems that i need to do on my homework

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Oh, ok. Need help with those?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0Ok, want to post a new problem?

srossd
 2 years ago
Best ResponseYou've already chosen the best response.0@ilovenyc I'll be on the lookout for a new post.
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