Answer:
C) y = 5
Step-by-step explanation:
Equation of a line in slope-intercept form: y = mx + b
(where m is the slope (gradient) and b is the y-intercept)
If the line is perpendicular to the y-axis, the line will be parallel to the x-axis (horiztonal) and so the slope is zero.
Therefore, y = (0)x + b
⇒ y = b
We are told that the line passes through point (-4, 5). Therefore, the y-intercept is 5.
So the equation of the line is: y = 5
