Evaluate the following expression when n = -7. -9|n + 5|

-18

Step-by-step explanation:

The tall sticks around n+5 are absolute value signs. Basically, all you need to do is work out what the answer to the problem is inside the signs, then make whatever the answer is positive, then multiply by -9.

-7 + 5 = -2 (that turns into 2)

-9 x 2 = -18

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value