Question

To find an equation for the line with slope -3 that passes through the point ( 4, 3 ), Dana wrote the following steps. Is he correct? Explain

Answer 1

Answer:

y=-3x+15

Step-by-step explanation:

$m=-3\\\\(4,3)=(x_1,y_1)$

Substitute values into point slope form

$y-y_1=m(x-x_1)\\\\y -3=-3(x -4)\\\\y-3=-3x +12\\\\y=-3x+12+3\\\\y=-3x+15$