Question

Find an equation for the line that passes through the points (-5, -5) and (3, 5)

Answer 1

5x-4y+5=0.

Explanation:

1) if the point A(-5;-5) and B(3;5), the formula is:

`(x-X_A)/(X_B-X_A) =(y-Y_A)/(Y_B-Y_A)`

2) according to the formula above:

`(x+5)/(3+5) =(y+5)/(5+5); \ = > \ (x+5)/(4)=(y+5)/(5);`

or 5x-4y+5=0.