Question

What is the equation of the line passing through the point (-4, -5) and having a slope of 4?

A. Y= 4x + 21
B. Y= 4x - 21
C. Y= 4x + 11
D. Y= 4x - 11

Answer 1

C

Explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = 4, thus

y = 4x + c ← is the partial equation

To find c substitute (- 4, - 5) into the partial equation

- 5 = - 16 + c ⇒ c = - 5 + 16 = 11

y = 4x + 11 → C

Answer 2

C. is the answer

Explanation: