SOLUTION: CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM: Write and equation that expresses the relationship. Use k as the constant of variation. d varies directly as the square of y. 1.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM: Write and equation that expresses the relationship. Use k as the constant of variation. d varies directly as the square of y. 1.      Log On


   

Question 158125: CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM:
Write and equation that expresses the relationship. Use k as the constant of variation. d varies directly as the square of y.
1. d = (square root) y
2. d = k / (square root) y
3. d = ky^2
4. d = k / y^2
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM:
Write and equation that expresses the relationship. Use k as the constant of variation. d varies directly as the square of y.
1. d = (square root) y
2. d = k / (square root) y
3. d = ky^2
4. d = k / y^2
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1 and 2 can be eliminated as they don't have a y^2 term.
In 4, d decreases as y increases, that's varying inversely.
That leaves 3. As y increases, d increases.
3. d = ky^2 is the only one.