Question

Help with the screenshot

Answer 1

ok so what do you think

Answer 2

lol i have no idea

Answer 3

x y = -x + 1

-3 4

1 0

4.5 -3.5

Answer 4

range {-3.5, 0, 4}

.............

x y = 2x

-3 -6

1 2

4.5 9

Range (-6, 2, 9}

Answer 5

ok let do it other way

Answer 6

y = –x + 1

y = –(-3) + 1

y = 4

Answer 7

y = –x + 1

y = –1 + 1

y = 0

Answer 8

y = –x + 1

y = –4.5 + 1

y = -3.5

Answer 9

Range: {4, 0, -3.5}

Answer 10

so the answer is what? :)

Answer 11

ummmm im still lost XD

Answer 12

ok have you learn this before

Answer 13

or is it just a pretest

Answer 14

i learned it before a long time ago but i cant remember at all how to do it

Answer 15

The first number given in the domain is -3. This is the first number in the curly braces

plug in x = -3 to get...

f(x) = 2x^2

f(-3) = 2(-3)^2 ... replace every x with -3

f(-3) = _______ (fill in the blank; tell me what you get)

Answer 16

36?

Answer 17

you do exponents first, then multiply

Answer 18

follow PEMDAS

Answer 19

oh right...18?

Answer 20

you do NOT do this

2(-3)^2 = (-6)^2 = 36

Answer 21

yes, you do this

2(-3)^2 = 2(9) = 18

Answer 22

so x = -3 is the input which matches with the output y = 18

-3 is in the domain
18 is in the range

Answer 23

A function is made up of ordered pairs of the form (x, y).
In a function, the domain is the set of values that the x-coordinate can have.
The range is the set of values that the y-coordinate can have.
In your example, you are given the equation for the function.
Use each x-coordinate you are given and come up with the corresponding y-coordinate.
Then all the y-coordinates are the range of the function.
Compare the range you get with the choices.

Answer 24

you'll do the same for the other numbers in the domain (1 and 4.5) to find the other numbers in the range

Answer 25

ok so, 2*1^2 is 1....right?

Answer 26

no its 2

Answer 27

no, 2*1^2 = 2*1 = 2

Answer 28

yes correct, it's 2

Answer 29

XD so now its either c or d

then 2*4.5^2 is 40.5

so its d

Answer 30

it's not choice C because choice C has -18

but when you plug in x = -3, the output is y = 18

Answer 31

ohhhhhh

Answer 32

Jim!! I forgot the information to my old account, mikeyy1992. It's nice to see you still on here.