Question

Find the value of f(-3) and g(3) if f(x) = -6x + 3 and g(x) = 3x + 21r.

Answer 1

Part 1)
`f(-3)=21`

Part 2)
`g(3)=9+21r`

Explanation:

Part 1) Find the value of f(-3)

we have

`f(x)=-6x+3`

we know that

f(-3) is the value of the function f(x) for x=-3

so

substitute the value of x=-3 in the function to find f(-3)

`f(-3)=-6(-3)+3`

`f(-3)=18+3`

`f(-3)=21`

Part 2) Find the value of g(3)

we have

`g(x)=3x+21r`

we know that

g(3) is the value of the function g(x) for x=3

so

substitute the value of x=3 in the function to find g(3)

`g(3)=3(3)+21r`

`g(3)=9+21r`