Hurry
Which relation does not represent a function?
A) a vertical line
B) y = 5/9 x - 3
C) a horizontal line
D) {(1, 7), (3,7), (5, 7), (7,7)}

A. a vertical line

A vertical line can have infinite inputs, therefore it isn't a function.

image result for what is another name for consecutive interior angles? ​

when two lines are crossed by another line (called the transversal): the pairs of angles on one side of the transversal but inside the two lines are called consecutive interior angles. in this example, these are consecutive interior angles: d and f.

step-by-step explanation: