Question

Function & Interval Notation (Attatched)

Answer 1

\[x=\frac{7y}{y+3}\]
solve for y

Answer 2

can someone explain it?

Answer 3

you want it expained or done?

Answer 4

both would be nice?

Answer 5

do like zz said... i'll stick around to help if you get stuck.

the reason you switch up the x's and y's is because the inverse takes you back to where you started.

in the beginning, you start at an input value (x) and plug it into your function h(x). youend up with a y. now, pretend you didn't know what x you put in h(x) to get the y you have. you'd really like it if you had another function that you could put your y into and get out x, yeah? that's the inverse function.

to find what that is, you take your original function, switch the x & y vaules and then solve for y to get a new fucntion which takes you back from y to x

Answer 6

can you tell me the answer?

Answer 7

12