Question

Given f(x) = –5x + 1, what is f(–2)?

Answer 1

im really confused

Answer 2

replace every x by -2

-5(-2) + 1

Answer 3

See how it say's f(x), and a -5(x)+1
So instead of f(x), it says f(-2), so how would you?

Answer 4

-5(-2)+1 = 11

Answer 5

That too

Answer 6

Think about it this way :) you put a number in a box and you get negative 5 times the number and 1 added to it. Similarly, you'll get negative 5 times -2 and then 1 added to it :)

Answer 7

\[\color{Black}{\Rightarrow \textbf{if} f(x) = -5x + 1 \Rightarrow \textbf{then } f(-2) = -5(-2) + 1 }\]