Pls help honestly don't be a meany

Im a bit sad that I cant remember how to do this...

Step-by-step explanation:

I wish I could help but unfortunately I don't know the answer... I'm really sorry.

But plzz mark me the brainliest as zero people have marked me brainliest.

I feel so bad that I'm not able to help you.

im guessing (23,14). hope this : )

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.