Question

Help?
Which is the inverse of y=1/2x+3?
A y=2x−3
B y=2x−6
C y=−3x + 2
D y=−1/2 x − 3

Answer 1

switch the x and y and solve for y

Answer 2

so D?

Answer 3

Not exactly..
y=1/2x+3
To find the inverse switch the variables:
x=1/2y+3

Answer 4

So solve for y:
x-3=1/2x
multiply by 2
2x-6=y

Answer 5

And now solve again for y.

so first isolate 1/2y on the right side

and then COMPLETELY isolate y to solve for y again

Answer 6

so, B

Answer 7

correct!

Answer 8

Yup, yup.

Answer 9

thanks!

Answer 10

Any time :D