Question

Write the equation of the line with a slope of -3 that passes through (-5,20)

Answer 1

SUBSTITUTE THE KNOWNS IN THE GIVEN GENERAL EQUATION BELOW AND SIMPLIFY TO GET c

`y = mx + c \\ 20 = - 3( - 5) + c \\ 20 = 15 + c \\ c = 20 - 15 \\ c = 5`

Meaning

`y = - 3x + 5`

IS THE EQUATION