Question

The domain of the given function is {4, -2}. What is the range?

Answer 1

h (x) = 2x^2 - 5

Answer 2

You plug-in 4 and -2 in the function respectively.

Answer 3

Essentially, you have to find \(h(4)\) and \(h(-2)\).

Answer 4

Can you do that?

Answer 5

ooo ok let me try

Answer 6

Sure

Answer 7

h(4) = 2(4) and does h (-2) = 2(-2)

Answer 8

No...

Answer 9

\[ h(4) = 2(4)^2 - 5\\h(-2) = 2(-2)^2 - 5\]

Answer 10

o ok

Answer 11

so now i have to multiply these or solve i mean

Answer 12

is the final answer
(-13, 11)

Answer 13

hello?

Answer 14

Nope, not.

Answer 15

how come?

Answer 16

i did the work and thats what i found out though

Answer 17

or maybe i did it wrong

Answer 18

\[h(4) =2(4)^2 - 5 \implies 2(16) - 5 \implies 32 - 5 = 27 \]

Answer 19

ooooooooooo ok

Answer 20

i got my answer now, is it 3,27

Answer 21

No!

Answer 22

You got the 3 and 27 part right, but since the domain is {4,-2}, we have {27,3} as the range.

Answer 23

o ok i get it thnx

Answer 24

You're welcome! And were you born in 1999 too?

Answer 25

yes...

Answer 26

Me too :)

Answer 27

nice!

Answer 28

can u help me with one more question?

Answer 29

18 - 8x - 15 = -7 - 5 ( x - 1) + 5

Answer 30

i got the answer -5x = 7

Answer 31

Can you post it after closing this one?

Answer 32

sure