Answer:

Step-by-step explanation:
To find your slope using two points, use the slope formula.

Your y1 term is -5, your y2 term is 4.
Your x1 term is -2, your x2 term is 4.

Now that we have your slope, you can use the slope and one of your points in point-slope form to find your y-intercept.

Answer:
C is face
B is edge
A is vertex (where 2 or more points meet)
The MX in the question would be -4/3 since that is the slope and the y int would be the b