Question

The equation y + 3 = 5(x - 3)

represents a linear function. what is the y-intercept of the equation?
A. (0, 36)
B. (0, 5)
C. (0, - 18)
D. (0, -72)​

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 )

Given

y + 3 = 5(x - 3) ← distribute right side

y + 3 = 5x - 15 ( subtract 3 from both sides )

y = 5x - 18 ← in slope- intercept form

with y- intercept c = - 18 ⇒ (0, - 18 ) → C