output function

[sandradee1]

Hello, how do you find the output of function corresponding to each input value given
f(x)=7.2x +3; x=20 . =-2

 

[pka]

Hello, how do you find the output of function corresponding to each input value given
f(x)=7.2x +3; x=20 . =-2

I find this post difficult to understand. Please tell us exactly what it means.

What does "output of function" means?

What does "x=20 . =-2" means?

 

[mmm4444bot]

My take on it is:

How do you find f(x) corresponding to each x given?

f(x) = 7.2x + 3

x = 20

x = -2

 

[Quaid]

how do you find the output of function

f(x) = 7.2x + 3

x = 20

To calculate the value of f(20), you first substitute the number 20 for x.

f(20) = 7.2(20) + 3

Second, you simplify the right-hand side.

In other words, do the arithmetic, to find the output of function f, when the input is 20.

Do you still have a question, about this exercise?

Cheers :cool: