Question

The inverse of the function y = x2 is still a function.
a) Always
b) Sometimes
c) Never

Answer 1

Well if you know point (4,16) and (-4,16) is on y=x^2
what two points from that do you know is on the inverse of y=x^2?

Answer 2

no clue

Answer 3

So you never heard of if (x,y) is on f, then (y,x) is on the inverse of f?

Answer 4

i have not

Answer 5

so what do you know about inverse functions then ?

Answer 6

do you know how to find the inverse function algebraically?

Answer 7

i know nothing about algebra

Answer 8

That can't be true since this an algebra question.

Answer 9

i copied it

Answer 10

There isn't much I can do with nothing.

Answer 11

You have to know something about inverse functions to answer this question. If you recall no definitions, then how can I help you.

Answer 12

ok thanks

Answer 13

u could help by determining if it's a b or c

Answer 14

oh no
i can't just give the answer

Answer 15

How about I try to teach you just a little about inverses?

Answer 16

and functions.

Answer 17

and then you can determine the answer

Answer 18

First of all if you graph y=x^2 you have a parabola which it looks like

y=x^2 is a function
I'm going to assume you know a little about algebra.
I want you to reflect this graph about the y=x line and I will draw the y=x line so you know what line to reflect y=x^2 about.