Question

Find an equation of the line passing through the given points. Use function notation to write the equation. (-2,-4) and (-4,-3)

Answer 1

y = mx + b

-3 = -4m + b
-4 = -2m + b

b = 4m - 3
b = 2m - 4

4m - 3 = 2m - 4
4m - 2m = 3 - 4

2m = -1
m = -1/2

b = 4(-1/2) - 3
b = 2(-1) = -2

y = -1/2(x) - 2