Question

WILL GIVE A BRAINLIEST IF UR RIGHT PLEASE HELP!!

Answer 1

3  comes in the range  3 =< x <= 12

so  its x + 4 = 3 + 4 = 7

B

Answer 2

f(x)=     3x-3 if -5 ≤ x < 3 and x+4 if 3 ≤ x ≤ 12

Hence, f(x) is a piece wise function.

To find f(3) we will have to use x + 4 since that is the condition where x = 3 fits in.

x + 4 = 3 + 4 = 7

Hence, the answer is B.