Question

I need some help, can anyone help me out ?
evaluate f(x)=9x+3 when x=5 ​

Answer 1

Explanation:

when x=means that you have to put your x into your f(x).

So f(5)=9(5)+3

= 45+3

=48

So f(5)=48

Answer 2

Given:-

• 
  `\sf \: x = 5`

`\:`

Solution:-

• 
  `\sf \: f ( x ) = 9x + 3`

`\:`

now put the value of x = 5 in equation :

• 
  `\sf \: f ( 5 ) = 9( 5 ) + 3`

`\:`

• 
  `\sf \: f ( 5 ) = 45 + 3`

`\:`

• 
  `\fbox{\sf \purple{ f ( 5 ) = 48}}`

`\:`

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hope it helps:)