Question

Determine whether the curve is a function

Answer 1

14. Yes

15. No

Explanation:

14. Passes vertical line test.

15. Does not pass vertical line test.

Answer 2

14 is a function, 15 is also a function

Explanation:

You can use the vertical line test to see if a curve is a function. If the vertical line intersects the graph more tha one time, it not a fuction. If only one time, it is a function.