## mamma17 Group Title 1. Suppose that x and y vary inversely, and x = 7 when y = 11. Write the function that models the inverse variation. a.) y=1.57x b.) y=77/x c.) y=4/x d.) y=18/x one year ago one year ago

1. KingGeorge Group Title

Since they are inversely proportional, you know that$y=\frac{k}{x}$for some real number k. You also know that when x=7, y=11. So you have $11=\frac{k}{7}.$So you just need to solve for $$k$$. That make sense?

2. mamma17 Group Title

so then I would times 7 on each side to get the answer?

3. KingGeorge Group Title

Exactly.

4. mamma17 Group Title

ty lol so then the answer would be y=77/x?

5. KingGeorge Group Title

Looks right to me.

6. mamma17 Group Title

ty ty ty

7. KingGeorge Group Title

You're welcome.