Question

Which graph passes the vertical line test?
A.

B.

C.

D.

Answer 1

C

Explanation:

If a vertical line intersects the graph in some places at more than one point, then the relation is NOT a function.

answer choices A, B, and D intersect at more than one point vertically. Therefore, C is the correct answer.

Answer 2

Graph C.

Explanation:

The rest of the graphs fail the vertical line test. This means some inputs (x values) contain more than one output (y value).