Respuesta :

Answer:

b = –9

Step-by-step explanation:

First, refer to the slope-intercept formula:

y = mx + b

In this formula, m is the slope and b is the y-intercept.

That means in y = 4x – 9, the b variable is –9, which is the y-intercept.

Answer: the answer is A. because the y intercept is -9.