Question

Select all statments that are true

A.) This graph is one to-one
B.)f (4.9)=5
C.)f (-3.4)=-4
D.)This is the graph of the absolute value function
E.)this is the graph of the greatest integer function.
PLEASE HELP!!(i will add graph soon)

Answer 1

hold on

Answer 2

okay

Answer 3

Let's go through the answer choices one by one

`A.) This graph is one to-one`

is that true or false? why?

Answer 4

hint: horizontal line test

Answer 5

@jim_thompson5910 i belive its false

Answer 6

Because it goes through 2 points

Answer 7

yes you are correct

Answer 8

it's possible to pass a horizontal line through more than one point on this graph, so it is not one-to-one

Answer 9

`B.)f (4.9)=5`

true or false? and why do you think this?

Answer 10

true? I dont really . remember but i think bc it rounds up to 5

Answer 11

actually it should be f(4.9) = 4

you round DOWN to the nearest whole number

Answer 12

no matter how close you get to 5 (4.9, 4.99, 4.999, 4.9999, etc) you'll round down to 4

Answer 13

if you look at the graph, you locate x = 4.9 on the x axis

draw a vertical line through 4.9 on the x axis

then make note where the vertical line crosses the blue graph

Answer 14

the point (4.9, 4) is on the blue graph

Answer 15

Okay

Answer 16

So a,b are not true

Answer 17

`So a,b are not true`
I agree

Answer 18

`C.)f (-3.4)=-4`
true or false? why?

Answer 19

hint: think of a vertical number line. Where is -3.4 located? What's directly below this value?

Answer 20

I think its false because i looked at the graph and it looked like it went to -3

Answer 21

-3.4 will round DOWN to -4

Answer 22

Oh how come?

Answer 23

see attached

Answer 24

Ohh i didnt aee it correctly

Answer 25

.see

Answer 26

So so far c is correct

Answer 27

yes

Answer 28

`D.)This is the graph of the absolute value function`
true or false? and why?

Answer 29

I think its false because i dont really know how to explain

Answer 30

it is false. An absolute value equation would have a V shape like this

http://2012books.lardbucket.org/books/advanced-algebra/section_05/f800ff00fb0c0579741140bd63f30a6c.png

Answer 31

`E.)this is the graph of the greatest integer function.`
true or false? why?

Answer 32

True because its like the f (x)=1×1 thing

Answer 33

yep this is a greatest integer function

http://www.mathnstuff.com/math/spoken/here/1words/g/g6.htm

Answer 34

Summary:

A) false
B) false
C) true
D) false
E) true

so only C) and E) are true

Answer 35

Thank you soo much for helping

Answer 36

no problem