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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. 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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KingGeorgeBest 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

mamma17Best ResponseYou've already chosen the best response.0
so then I would times 7 on each side to get the answer?
 one year ago

mamma17Best ResponseYou've already chosen the best response.0
ty lol so then the answer would be y=77/x?
 one year ago
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