Question

If f(x) = −4x + 1, find f(−5).

Answer 1

just put x=-5
so, what is -4(-5)+1 =... ?

Answer 2

@ahoward79: You have asked many similar questions. Did you get the concept? =)

Answer 3

O.o

Answer 4

@ParthKohli No :/ I just dont understand. Do you think you could work one all the way out so I can see how to do it?

Answer 5

connections academy?

Answer 6

You need to plug in -5.
so here it's : -4(-5) + 1
which is 21.

Answer 7

It's just a plug in game @ahoward79

Answer 8

Just replace 'x' with '-5'

Answer 9

if you have to find f(a) when f(x) is given, you just replace 'x' in f(x) by a.
that is put x=a
example :
if f(x) = 5x-4
f(2) = 5(2)-4 = 10-4 =6

Answer 10

So would the answer be 21?

Answer 11

Yeah :)

Answer 12

but did you get how ?

Answer 13

Yes :) Thank you all! I wish I could give you all medals :)

Answer 14

@ahoward79 Do you really understand this ?

Answer 15

so if i give you same type of other problem, will you be able to solve it ?

Answer 16

For example :

f(x)=2x-3

What will


f(-1)=..

Answer 17

-5

Answer 18

Good going (y)

Answer 19

Please show the steps how you did it :)

Answer 20

2(-1) - 3

Answer 21

Yes continue...