Question

please help!
What is the equation of the following line written in slope-intercept form?

https://media.glynlyon.com/g_alg01_2013/3/78b.gif
y = 5x
y = -5x
y = 5/x

Answer 1

Well, you know it's going to be a positive slope because it's going up to the right. So the second answer is automatically out. Now to find the slope.
y=mx+b (slope intercept equation)

m=(y2-y1)/(x2-x1) so...
m=(5-(-5))/(1-(-1))=-10/-2=5

Now plug the numbers you know into the slope intercept equation. Pick one set of the coordinates.
5=5*1+b
5=5+b
5-5=5-5+b
0=b

Therefore y=5x+0 or y=5x

Answer 2

I agree :)