Question

Consider the equation y = -2x + b. Find the value of b if the line passes through (-5, 4).

Select one:
a. b = -3
b. b = 4
c. b = 2
d. b = -6

Answer 1

b = -6 (Answer d)

Explanation:

The slope-intercept equation is y = -2x + b, and we know that the line passes through (-5, 4). Substitute -5 for x and 4 for y, to obtain:

4 = -2(-5) + b, or

4 = 10 + b, or

b = -6 (Answer d)