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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
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

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KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
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?
 one year ago

mamma17 Group TitleBest ResponseYou've already chosen the best response.0
so then I would times 7 on each side to get the answer?
 one year ago

KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
Exactly.
 one year ago

mamma17 Group TitleBest ResponseYou've already chosen the best response.0
ty lol so then the answer would be y=77/x?
 one year ago

KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
Looks right to me.
 one year ago

KingGeorge Group TitleBest ResponseYou've already chosen the best response.1
You're welcome.
 one year ago
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