Question

6)
If f(x) = 3x + a and f(1) = 7 find a and f(4)​

Answer 1

Step-by-step explanation:

f (1)=3×1+a

=3+a

a=4

f (4)=3×4+4

12+4

16

Answer 2

Answer:

f(x)=3x+a

f(1)=7

So. f(1)=3×1+a

7=3+a

a=7-3

a=4

then f(4)=3×4+4

=12+4

=16