Question

Find the range of f(x) = -x + 4 for the domain (-3, -2, -1, 1)

{-7,-6,5,3}
{7, 6, 5, 3}
{-7,-6,-5,-4}
{7, 6, 5, 4}

Answer 1

i think its C

Answer 2

plug in each number and see what comes out

Answer 3

domain are the x variables and range is the set of y-variable in a function.

You are looking for f(x) or y.

Substitute each value of the domain in the function.
For example, the 1st domain is x= -3 , plug this into the function:
f(-3)= -(-3) + 4 is...?

Then do this to each of the domain to get the range.

Answer 4

so D? @Data_LG2

Answer 5

well, if you sub x= 1 , what will you get?

Answer 6

Oh is it A?

Answer 7

@Data_LG2

Answer 8

maybe :) tell me what you get for x=1 first (just to make sure you're not guessing )

Answer 9

I am guessing because I can't figure it out and I'm kinda in a hurry the end of the course is friday D:

Answer 10

@Data_LG2

Answer 11

it's okay. Just relax, you can do it :)

what is -1 + 4?

Answer 12

3

Answer 13

yes, now look at choice A and D, which one has a range of 3?

Answer 14

A

Answer 15

correcto :)

Answer 16

thanks so much *^*

Answer 17

no problem :) cheers!
semester's almost over
time for some yummy lemonade:D

Answer 18

right? im on the swim team cant wait to get back in the water >.< thanks for encouraging me and helping :D

Answer 19

go fight win ^_^ if you have any questions on how to use this site, just message me
I need to go now. Nice to know you !

Answer 20

thanks! have a nice night/morning ^_^