Question

help please
iven f(x) = –5x + 1, what is f(–2)?

Answer 1

If you input a number \(x\), you get negative five times x and one added. similarly, when you input -2, you'll get negative five times -2 and one added. In other words.

\( \color{Black}{\Rightarrow f(x) = -5x + 1 \Longrightarrow f(-2) = -5(-2) + 1}\)

Answer 2

Can you solve it now?

Answer 3

maybe but im not sure

Answer 4

what is -5 times -2 ?

Answer 5

10

Answer 6

now add 1
you just figured out
-5*-2 +1

Answer 7

OHHHH ok thankyou i get it now

Answer 8

so
f(x) = –5x + 1
is just short hand for -5 * x +1
you replace x with a number
f(3) is short hand for replace x with 3. then do the arithmetic

Answer 9

f(-2) means replace x with -2, so you get -5*-2+1
which simplifies to 11