Question

Given ​f(x)= 20x+ 10​, find f(3)

Answer 1

Answer: f(x) = 70

Explanation:

f(x) = 20(3) + 10

f(x) = 60 + 10

f(x) = 70

Answer 2

f(3) = 70

Explanation:

​f(x)= 20x+ 10

Let x= 3

​f(3)= 20*3+ 10

f(3) = 60+10

=70