Question

ANSWER ASAP PLEASE!!!!!!!!!!!!!

Evaluate f(x)=4x-6 for f(5)
A.-5
B.26
C.14
D.10

Evaluate g(x)=x-7 for g(5)
A.-2
B.12
C.2
D.35

Evaluate g(x)=x^2 for g(3)
A.1
B.6
C.9
D.15

Answer 1

It is extremely easy. You just have to substitute the function value of variable "x" back into the original expression to directly obtain the answer for a specific "set value" for a variable of "x". Here they have asked for function of "x" and replaced the function for variable "x" to a value.

For the first one. The function of "x" is replaced by the value of "5". Substitute this value into the original functional expression to obtain the answer. So:

1)

2)

3)

The final answers are given and we can deduce the options for those three questions.

1) Option C) 14.

2) Option C) 2.

3) Option C) 9.

Hope it helps.

Explanation:

Answer 2

It is extremely easy. You just have to substitute the function value of variable "x" back into the original expression to directly obtain the answer for a specific "set value" for a variable of "x". Here they have asked for function of "x" and replaced the function for variable "x" to a value.

For the first one. The function of "x" is replaced by the value of "5". Substitute this value into the original functional expression to obtain the answer. So:

1)
`\mathbf{Since, \: f(x) = 4x - 6}`


`\mathbf{\therefore \quad f(5) = 4 * 5 - 6}`


`\mathbf{f(5) = 20 - 6}`


`\boxed{\mathbf{\therefore \quad Final \: \: Answer, \: f(5) = 14}}`


2)
`\mathbf{Since, \: g(x) = x - 7}`


`\mathbf{\therefore \quad g(5) = 5 - 7}`


`\boxed{\mathbf{\therefore \quad Final \: \: Answer, \: g(5) = 2}}`


3)
`\mathbf{Since, \: g(x) = x^2}`


`\mathbf{\therefore \quad g(3) = 3^2}`


`\boxed{\mathbf{\therefore \quad Final \: \: Answer, \: g(3) = 9}}`


The final answers are given and we can deduce the options for those three questions.


1) Option C) 14.

2) Option C) 2.

3) Option C) 9.


Hope it helps.