Explain how to use the vertical-line test to determine whether a relation is a function.
A. If you draw a line left to right, and it passes through at least one graphed point, then the relation is a function.

B. If you draw a line left to right, and it passes through at most one graphed point, then the relation is a function.

C. If every vertical line passes through at most one graphed point, then the relation is a function.

D. If every vertical line passes through at least one graphed point, then the relation is a function.

Question

Explain how to use the vertical-line test to determine whether a relation is a function.  
A.    If you draw a line left to right, and it passes through at least one graphed point, then the relation is a function.

    B. If you draw a line left to right, and it passes through at most one graphed point, then the relation is a function.

   C.  If every vertical line passes through at most one graphed point, then the relation is a function.

   D.  If every vertical line passes through at least one graphed point, then the relation is a function.

.sam. · Answer

If every vertical line passes through at most one graphed point, then the relation is a function.

.sam. · Answer

C