Question

If f(x)=2x-1, what does f(10) equal

Answer 1

f(10) = 19

Explanation:

f(x) = 2x - 1

To find f(10) substitute the value of x that's 10 into f(x). That is for every x in f (x) replace it with 10

We have

f(10) = 2(10) - 1

= 20 - 1

We have the final answer as

f(10) = 19

Hope this helps you