Question

Attaching question about graph.
FINAL EXAM TOMORROW PLEASEE HELP

Answer 1

Need to know how to do A and C

Answer 2

Also e, f, g, and h

Answer 3

ok, what is the value of f(x) where x=2

Answer 4

and the value of g(x) when x=4

Answer 5

You @brittlynn need to ask questions please :)

Answer 6

what is it about the questions you don't understand?

Answer 7

Part a)
f(2)-g(4) = 0-(-2) = 2

Answer 8

^ I see how you did that one

Answer 9

Part c)
f(-1)/g(-1) = 3/1 = 3

Answer 10

and I just dont know how to do them, or what they're asking really

Answer 11

y = f(x) = f(2) means when x is 2 what is the value of y

Answer 12

part e)
Domain of a function is the range of possible x values in this case. x is the independent variable.
In the graph of f(x) - the rage is x=-2 to x=4
The domain of f is the interval [-2,4]

Answer 13

If there were open circles at the end, the interval would not include the endpoints, so you would use (-2,4) parenthesis

Answer 14

is f -3?

Answer 15

f means function... y=f(x) means y is a function of x

Answer 16

oh i meant f like the problem sorry

Answer 17

Part f) on which intervals is g(x) decreasing?
This means when is the slope negative. When does the y value decrease for increasing x values.
answer: from x=-3 to x=+3

Answer 18

as you can see on the other 2 intervals (-infinity to -3) and (3 to +infinity) the slopes are positive and the function g(x) is INCREASing.

Answer 19

that makes sense

Answer 20

now just d, h and g. ha :( thank you so much though

Answer 21

oh no, MSU. haha i went to u of m... booo

Answer 22

hahaha what a coincidence. well I guess I can't say anything considering youre teaching me this stuff

Answer 23

Is this the actual final online? do you just need the answer? or actually learn how to do this?

Answer 24

i actually need to learn how to do it, its a sample final

Answer 25

ok

Answer 26

is the relative max just where the graph is the highest point?

Answer 27

@brittlynn what textbook are you using?

Answer 28

I dont have a textbook

Answer 29

part d)
(f o g)(x) = (f o g)(2) = f(g(x))
Find g(2) then put that number into f(that number)

Answer 30

:O have checked out the Khan Academy videos on YouTube?

Answer 31

never heard of them

Answer 32

They are fast paced, check it out.

Answer 33

part d)
(f o g)(2) = f(g(2))
g(2) = -2
f(g(2))= f(-2) = 5

Answer 34

yeah khan academy is a good place to learn, i used that site for linear algebra and diff eq

Answer 35

He has an MBA from Harvard and knows how to talk fast.

Answer 36

His BSc is from MIT in electrical engineering and he builds everything up from the basics.

Answer 37

I watched a minute or so, I like it

Answer 38

I'm not so sure it's a good idea to go there the night before a final exam, but you know know for next time :)

Answer 39

If you want a puritan mathematician's POV try N J Wildberger on You Tube.