Question

.

Answer 1

looks good to me

Answer 2

looks correct like @kirbykirby said

Answer 3

The first one is correct, Joanna

Answer 4

I think the answer to that one is B.

Answer 5

Based on the graph, B is the best choice.

Answer 6

true

Answer 7

question 4 is right! its true.One-to-one means that each value of the range will generate a distinct value of the domain.

Answer 8

look the f(-2). is the same as f(x).
u need to compare the x values with the piece wise functions.

check x = -2. of the domains and then plug in the appropriate function.

Answer 9

i';l just do this one for you, so you can check the rest yourself.

f(-2) = 4?


when x = -2,

there have three functions and domains,
x <1
x=1
x>1

compare the since x = -2, compare with each domain whether it qualifies, if it does then choose the function beside it and plug in the value for x.

Answer 10

f(-2) = x -2 which is < 1

so i choose the function beside it.= it says f(x) = 2*x , f(-2) = 2*-2 = -4.
so the first one is wrong.

i hope you understand the question now and able to do the rest yourself.

Answer 11

-2<1 that's what i mean by f(-2) = x= -2 which is < 1.

Answer 12

yup!

Answer 13

@Lion.k

Answer 14

yes you right.

Answer 15

wait a sec.

Answer 16

first one is correct aswell

Answer 17

f(4.9) = 5 is correct

Answer 18

I agree that f(-3.4) = -4
but f(4.9) is not equal to 5

Answer 19

i agree with that

Answer 20

no i actually think it is..f(4.9) is 5.

Answer 21

f(4.9) is 4, and you can see it in the graph as well

Answer 22

(well sorta lol)

Answer 23

f(4), f(4.1), ..., f(4.8), f(4.9), f(4.99), f(4.999) are all equal to 4
but f(5) = 5

Answer 24

http://www.wolframalpha.com/input/?i=greatest+integer%284.9%29

Answer 25

yup i drew the graph..and kirby is right! f(4.9) = 4

Answer 26

i agree \(\checkmark\)

Answer 27

yup stick with the asnwers.

Answer 28

the absolute value the graph wouldn't be on the negative side.

Answer 29

Q10 absolute value function cannot be one to one..

Answer 30

so it would be true. while Q9 i'm not sure..

Answer 31

nvm ya 10 is false, and 9 looks right haha