Question

If you’re good at algebra could somebody help me please?

Answer 1

a). f(0) = 7

b). f(
`(1)/(3)`) = 6

c). f(-5) = 22

d). x = 9

Explanation:

The given function is f(x) = -3x + 7

a). For x = 0

f(0) = -3(0) + 7

= 0 + 7

= 7

b). For x =
`(1)/(3)`

f(
`(1)/(3)`) =
`(-3)((1)/(3))+7`

= -1 + 7

= 6

c). For x = (-5)

f(-5) = -3(-5) + 7

= 15 + 7

= 22

d). For f(x) = (-20)

-20 = -3x + 7

3x = 20 + 7

3x = 27

x = 9