Question

1. Given f(x) = x + 5 and g(x) = 11x - 5, what is f(x) + g(x)?
2. Given f(x) = x + 9 and g(x) = 5x - 5, what is f(3) + g(- 3)?
3. Given f(x) = - 8x + 5 and g(x) = 10x + 2, what is g(x) - f(x)?
4. Given f(x) = 3x - 3 and g(x) = 2x , what is f(4) - g(2)?
5. Given f(x) = 6x + 2 and g(x) = x^3 , what is f(x) times g(x)?
6. Given f(x) = 4x^7 and g(x) = 6x^2 , what is f(x) divided by g(x)?

Answer 1

@mathstudent55

Answer 2

@rebeccaxhawaii

Answer 3

@4everaddicted2anime

Answer 4

1. = 12x
2. = -27
3. = 2x - 3
4. = 5
5. = 6x^4 + 2x^3
6. = 2x^5/3

Answer 5

Number one is correct

Answer 6

For number two you have
\[3+9+5(-3)-5\] Multiply -3 and 5 to get \[3+9-15-5\] Combine lilke terms to get \[12-20=-8\]

Answer 7

the ansers for 2. are ether 27 0r -27 3 0r -3

Answer 8

For number three you have\[10x+2--8x+5\] Combine like terms to get\[18x+7\]

Answer 9

Then I don't know about number two

Answer 10

ok thats fine

Answer 11

Number 4 is correct

Answer 12

Number 5 is correct

Answer 13

And Number 6 is correct

Answer 14

7. find f(g(10)) if f(x) = 2x and g(x) = 4x - 25
8. find f(g(x)) if f(x) = 5x + 9 and g(x) = 3 - 4x
here are a few more to check 7. = 45 8. = 24 - 20x

Here is what we have for number seven:
\[2[4(10)-25]=?\] Multiply 4 and 10 to get\[2[40-25]=?\] Simplify everything inside the brakets to get\[2(15)=?\] 2 times 15 is 30. Therefore the answer to number 7 is 30.

Answer 15

Number 8 is correct

Answer 16

thanks

Answer 17

yw