Does this graph represent a function? why or why not?

A function can only have 1 y value for each x value. To check this on a graph you would use the vertical line test.

To pass the vertical line test, the graphed line can only touch the vertical line in one place.

The pictured graph is a function, because it would pass the vertical line test.

The answer is A.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d