Question

If f(x) = 3x + 2 and g(x) = 2x – 2, what is (f – g)(x)?
x + 4
x – 2
x
5x – 2

x – 4

Answer 1

put a minus sign between them
use parentheses

Answer 2

what are you talking about

Answer 3

\[-\] is a minus sign

Answer 4

\[f-g=(3x+2)-(2x-2)\]

Answer 5

aka put a minus sign between them
use parentheses

Answer 6

Ok, the site went down while I was answering this.

"We can combine the functions based on the question.

(f-g)(x)

3x + 2 - 2x - 2

We can combine like terms. Do you know how to do that?"

Answer 7

i know what it is ill get some else help if your gonna be smart about it

Answer 8

no i do not know how to do that

Answer 9

Ok, well. If you had 4x and -5x you could combine them. They are like terms because they both have the variable 'x'. Since -5x is negative, we have to subtract

4x - 5x = -1x or just -x.

Now if we had 2x and 6x^2, we can't combine them. They both have the variable 'x' but 6x^2 has an exponent, so they are not the same and we cannot combine.

Answer 10

Our like terms in this problem are:

3x and -2x
2 and -2

Answer 11

so my answer is x

Answer 12

Yeah.

Answer 13

3x - 2x = x
2 - 2 = 0

x :3

Answer 14

okay i got three more questions

Answer 15

I have to go now, sorry! D:

Answer 16

too bad that answer is incorrect

Answer 17

its okay thanks for the help

Answer 18

Andy is wrapping gifts for his family. He ties 25 inches of ribbon around each gift. Which function gives the relationship between the number of gifts (g) and the length of ribbon used (r)?
The function representing the relationship between the length of ribbon and the number of gifts is

Answer 19

lets do the first one correctly

Answer 20

ive already answered it

Answer 21

what did you put?

Answer 22

i can use help on the last few tho

Answer 23

and i put x

Answer 24

it is wrong

Answer 25

i have a few more to go if i get right i should pass

Answer 26

going to next class give me like 10 minutes can you help with this

Answer 27

Andy is wrapping gifts for his family. He ties 25 inches of ribbon around each gift. Which function gives the relationship between the number of gifts (g) and the length of ribbon used (r)?
The function representing the relationship between the length of ribbon and the number of gifts is