Question

Can someone please help me with this question ?

Answer 1

D

Explanation:

The vertical line test is a visual way to determine if a curve is a graph of a function or not. A function can only have one output, y, for each unique input, x.

-------------------------------------------------------------------------------------------

Example: The first table is a function because each input value has only 1 output value, but the second table has more that one output value per input. (View Attached Picture Below)

The input value 4 in Table A has only 1 output value, 20. But in Table B, the input value for 4 has 2 output values, 16 and 17. So Table A is a function, while Table B is not.

Answer 2

Yes, because it passes the vertical line test

Explanation:

A function has one output for each input. This is called a one to one correspondent. This is shown by the vertical line test

This graph passes the vertical line test and is therefore a function