Question

The slope between two points (2,b) and (1, -2) is 4. Find b.

Answer 1

b=2

Explanation:

To get slope given two points, take the difference of the y values and divide it by the difference of the x values.

(This is also called change in y over change in x, or rise over run)

b-(-2)/2-1=4

b+2/1=4

b+2=4

b=2