Question

The function f(x)=35+15x
represents the amount of money, in dollars, Mr. Lewis earns for working x
hours. How much money does Mr. Lewis earn for working 25 hours?

Answer 1

Well you are given \(\large f(x)=35+15x\)
and are given the hours, x, as \(\large x= 25 \)
So just plug in x and calculate:
\[\large f(25)=35+15(\color{red}{25}) = 410\]

So Mr. Lewis earned $410 for 25 hours of work