Question

Given f (x) = 2x+1, find when f (x) = 9

Answer 1

19

Explanation:

substitute 9 in x and you get 18 then add 1 so total u get 19

Hope that helps :)

Answer 2

Steps to solve:

f(x) = 2x + 1

~Substitute

f(9) = 2(9) + 1

~Multiply

f(9) = 18 + 1

~Add

f(9) = 19

Best of Luck!