Question

Function Rule: f(x) =5x +8
a. Find f(7) - f(3)

Answer 1

20

Explanation:

We know

Function Rule: f(x) = 5x + 8

a. Find f(7) - f(3)

First, let's find f(7):

f(7) = 5(7) + 8

f(7) = 35 + 8

f(7) = 43

Now, let's find f(3):

f(3) = 5(3) + 8

f(3) = 15 + 8

f(3) = 23

Now we calculate

f(7) - f(3) = 43 - 23 = 20

Answer 2

f(7) - f(3) = 20

Explanation:

f(x) =5x +8

a. Find f(7) - f(3)

f(7) = 5*7 +8 = 35+8 = 43

f(3) = 5*3 +8 = 15+8 = 23

f(7) - f(3) = 43-23 = 20