What is the value of x?

Question

There are 2 points in the standard coordinate plane. One point is at (x,4) the other point is at (-3,-2). The slope Of the line connecting the two points is -3.

Answer 1

slope = (-2 - 4)/(-3 - x) = -3

 

                     -6/(-3 - x) = -3

 

                                    -6 = -3(-3 - x)

 

                                    -6 = 9 + 3x

 

                                     3x = -15

 

                                       x = -5