Question

If f(x) = 5x - 9, find the value of f(-2).
A. 8
B. -19
C. 23
D. -23

Answer 1

@ganeshie8

Answer 2

replace x with -2

Answer 3

5x-9
when you have 5x this means you will multiply whatever x is with 5
then after that take away 9 from that product
and you are done

Answer 4

what?

Answer 5

first step is replace x with -2

Answer 6

second step is to realize 5x means you are multiplying whatever you just plugged in with 5
then you take away 9 from that product

Answer 7

that is what the minus sign means

Answer 8

take away that is

Answer 9

you have (5 times x) then take away 9
replace the x with 2

Answer 10

with -2*

Answer 11

what is 5 times -2?

Answer 12

-10 duh

Answer 13

what is -10 take away 9?

Answer 14

-19

Answer 15

so b

Answer 16

yes
you just found f(-2)

Answer 17

isit b?

Answer 18

you just found f(-2)=-19
if -19 is b then yes

Answer 19

ok thanks alot

Answer 20

5(-2)=-10
-10-9= -19
the answer is b