Question

A line passes through D(-3,5) and has

slope -4.
a) Why is y – 5 = -4(x + 3) an equation of
this line?
b) Why is y = – 4x – 7 an equation of this line?

Answer 1

a) That is the answer in point-slope form: y-y_1=m(x-x_1)

b) That is the answer in slope-intercept from (y=mx+b)

Explanation: