Question

If f(x)=7x+4, what is the value of f(9)−f(5)?
HELPP!!! PLEASE

Answer 1

Explanation:

f(9) = 63+4 = 67

f(5) = 35+4 = 39

f(9)-f(5) = 67-39 = 28

Answer 2

28

Explanation:

f(x)=7x+4,

f(9) = 7*9 +4

= 63 +4 = 67

f(5) = 7*5+4

= 35+4 = 39

f(9) - f(5) = 67-39 =28