Question

If k(x)=5x+2, then what is the value of k(4)-k(1)?

A) 15
B) 17
C) 19
D) 21

Answer 1

The value of k(4)-k(1) is A. 15

Answer 2

k(x)=5x+2

k(4)=5(4) +2 =22

k(1)= 5(1) +2 =7

k(4) - k(1) = 22 - 7 = 15

The answer is:

A). 15