Question

The slope of the line that contains the points (-2, 10) and (3, -5) is -3. What is the y-intercept?

A. -12
B. 4
C. 7
D. 28

Answer 1

B. 4 [0, 4]

Explanation:

The quickest way to do this is to plug the coordinates into the Slope-Intercept Formula instead of the Point-Slope Formula. It does not matter which ordered pair you choose:

-5 = -3[3] + b

-9

4 = b

y = -3x + 4

__________________________________________________________

10 = -3[-2] + b

6

4 = b

y = -3x + 4

** You see? I told you it did not matter which ordered pair you choose because you will always get the exact same result.

I am joyous to assist you anytime.