Question

HELP!
http://prntscr.com/8ftwgn
http://prntscr.com/8ftyyr
http://prntscr.com/8ftz2a
http://prntscr.com/8ftz6d

Answer 1

For your first question, they've already given you the value of f(x) and g(x) so all you want to do is plug it into the equation. :)
\[f(x) = 9x + 4 \]
\[ g(x) = -5x + 1\]
Therefore g(x) - f(x) would equal:
\[-5x + 1 - ( 9x + 4) = ? \]

Answer 2

=-14x-3

Answer 3

correct :)

Answer 4

:]

Answer 5

For the next question:
f (x) = 9x - 5
f (2) = 9(2) - 5 = ?

Then after you find out what f(2) equals to, we want to find what g(4) equals to.
So,
g (x) = 6x
g (4) = 6(4) = ?


Then f(2) - g(4) = ?

Answer 6

they are easy just try to simply solve it

Answer 7

11?

Answer 8

not quiteeee.
So what did you get for f(2) = ?

Answer 9

Note:
f(2) = 9(2) - 5 = 18 - 5 = 13
g(4) = 6(4) = 24

f(2) - g(4) = 13 - 24 = ?

Answer 10

oh ok so it would be -11

Answer 11

yyyep :)

Answer 12

For question 3.
You need to multiply both f(x) and g(x) together.
Since
\[f(x) = x^2 + 6x\]
and \[g(x) = 2x^3\]
Multiply both together and we get:
\[f(x) \times g(x) = 2x^3 (x^2 + 6x) = ?\]

Answer 13

multiply the numbers and the powers will add

Answer 14

would is be D?

Answer 15

yyessss ^_^

Answer 16

now for the final one.
Just multiply both and see which one is correct.
So what do you get when you multiply f(x) and g(x) together?
\[f(x) \times g(x) = 5x ( 3x - 2) = ?\]

Answer 17

would the answer be A?

Answer 18

B***

Answer 19

not A

Answer 20

yes A is correct but have you checked option C or D?
Remember that the question says "check all correct answer(s)" :)

Answer 21

so A, C and D are the correct answers

Answer 22

B*

Answer 23

-.-

Answer 24

A is correct.
C is correct.
But what about D??
Note: when you multiply anything by 0, the answer will be 0

Answer 25

so D is incorrect

Answer 26

yepp :)

Answer 27

ty

Answer 28

no problemo~