Question

Cora is graphing the equation y = 12x. She has placed a point on the origin and uses the slope to find 2 more points.

Which points does Cora plot on her graph?

Choose exactly 2 answers that are correct.

A. (-1, -12)

B. (-12, -1)

C. (1, 12)

D. (12, 1)

Answer 1

So, y = 12x... This is simpler than a lot of people make it. Check this out.

We know points are in the form (x, y), and we have y = mx + b

So... y = 12x -- right? Lets take the first one, A: (-1, -12)

Remember..

(x, y)
(-1, -12)
x = -1
y = -12
--------
y = 12x

-12 = 12(-1)

-12 = -12... WHICH IS TRUE! So one of your points is A. Find the other doing this method. :)

Answer 2

THANK YOU!!!

Answer 3

Do you understand, Nichole? It's really simple! Just substitute (x, y) into your y = mx + b equation.

Say like; you get 10 = 10 This is TRUE and solution
But if you get 3 = 5 This is FALSE and you need to try a new pair of (x, y)

Take care! :)

Answer 4

Yes I understand thank for explaining :)

Answer 5

Thanx*