Question

f(x)=3x^2-7

Answer 1

i cant help with that

Answer 2

sorry man

Answer 3

I'm a female

Answer 4

oof sorry mrs

Answer 5

You need to explain what the question is.

Answer 6

That is all that is in that question

Answer 7

Firstly, if you cannot help the asker, then don’t post a response.

Secondly, I assume this is finding the inverse?

Answer 8

f(x) is… y. We’ll say that.

And if I remember correctly, variables are moved. Give me a second to look at notes.

Answer 9

So switch the "x" and "y" then solve for "y".

Answer 10

Where did you get the "y" from?

Answer 11

Ah, right Echo.

f(x) is y if I’m correct.

But yes, solve for y

Answer 12

Then that makes it
x=3y^2-7

Answer 13

Idk what to do after that

Answer 14

Im sorry im just really terrible at math

Answer 15

Yes, that would be correct.

We have to solve for y now.

So do you remember what you do to solve for a variable with a number and exponent on it?

Answer 16

Do you add 7 to both sides?

Answer 17

To make 7x=3y^2

Answer 18

That’s after the first step.

Firstly we subtract X from both sides to get 3y^2 - 7 = x

Answer 19

Then we add 7 to both sides to make it

3y^2 = x + 7

Answer 20

Ohh because you cant add together unlike terms, I got chu

Answer 21

Then do you divide both sides by 3

Answer 22

You would be correct

Answer 23

Then take the square root to find that the square root of x+7/3=y