If y varies inversely with x, and y = -3 when x = 18, find x when y = -2

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

8 0

Answer:

The correct answer would be 12, which isn't one of your options.

Step-by-step explanation:

When finding direct variation, you start with the base equation.

y = kx

Now we can use the initial values of x and y to find k.

-3 = k(18)

-1/6 = k

Now with the value of k, we can model the equation.

y = -1/6x

And we can find the new x by using our new value of y.

-2 = -1/6x

12 = x

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What is the slope of the line through (-9, 6) and (-3, 9)? Choose 1 answer:

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Given: Points (-9, 6) and (-3, 9)

Find: The slope of the line that goes through those two points

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