Question

help!! for f(x)=|x| +4 , find f(x^2)

Answer 1

@bibby

Answer 2

Does it have any special instructions?

I think you'd just plug in the x^2 everywhere you see an x in the original equation

Answer 3

x^2+4

Answer 4

|x^2| + 4. if you're interested in the graph, check this out:
http://www.wolframalpha.com/input/?i=%7Cx%5E2%7C+%2B4

Answer 5

thank you, can you help me with another problem

Answer 6

yeah, post another question and tag me in it

Answer 7

its number 9 in the pdf file

Answer 8

or post it here. You're supposed to have a different question for every problem but idc

Answer 9

http://www.mathwarehouse.com/algebra/relation/vertical-line-test.php

Can you draw a vertical line anywhere on the graph that would hit the curve two times?

Answer 10

two or more times*

Answer 11

isn't it supposed to hit once

Answer 12

It's /supposed/ to hit once.

"if a vertical line intersects the relation more than once, then the relation is a NOT a function."

Answer 13

so they are both functions?

Answer 14

Yeah.

Answer 15

thank you

Answer 16

np np