Question

If g (x)=3x-7, then g(4)=

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Answer 1

To find the inverse of g(x) we need to interchange x and y, as follows:

y = 3x - 7

x = 3y -7

3y = x + 7

Explanation:

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Answer 2

`\qquad\qquad\huge\underline{\boxed{\sf Answer☂}}`

To find g(4), we have to substitute the variable x with 4 on the expression g(x) ~

`\qquad \sf  \dashrightarrow \: g(x) = 3x - 7`

`\qquad \sf  \dashrightarrow \: g(4) = 3(4)- 7`

`\qquad \sf  \dashrightarrow \: g(4) = 12- 7`

`\qquad \sf  \dashrightarrow \: g(4) =5`