Which set of ordered pairs does NOT represent a function?
A)
(0, 1), (2, 2), (4, 8), (-2, 7), (5,8)
B)
(0, 1), (2, 2), (4, 8), (2, 7), (5,8), (7,9)
(-3, 6), (2,7), (0, 5), (1, 5), (4,9), (5, 4)
D)
(-4,2), (-3, 2), (-2, 2), (-1, 2), (0, 2), (1, 2)

ci

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)