What is the inverse of the given relation?

y = 7x2 – 3

Question

What is the inverse of the given relation?

y = 7x2 – 3

dumbcow · Answer

basically solve for x and you will get inverse

parthkohli · Answer

... and then replace $x$ with $y$ and vice-versa.

hba · Answer

f(x)=y=7x^2-3

anonymous · Answer

You're all talking a foreign language to me. I hate math, more than anything. I don't get this, at all.

hba · Answer

Hating it and getting it are two different things.

anonymous · Answer

I hate it, and dont get it.

dumbcow · Answer

when i said "solve for x"  i meant rearrange the terms so that x is by itself
$$y = 7x^{2} -3$$
add 3 to both sides
$$y+3 = 7x^{2}$$
...
until
x = ?

anonymous · Answer

7^2 = 49, so 49x?

dumbcow · Answer

hmm no the 7 is not being squared, only the x

dumbcow · Answer

let me try this example...

5x = 4
what does x equal?

anonymous · Answer

wouldn't i divide 5 by both sides?

dumbcow · Answer

thats right...ok now apply that concept to 

y+3 = 7x^2

dumbcow · Answer

or
7x^2 = y+3

if that looks nicer