3-8 Direct, Inverse, and Joint Variation

Jan 05, 2020

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3-8 Direct, Inverse, and Joint Variation. Pre Calc A. Formulas. Direct y = kx Inverse Joint y = kxz. Ex 17:. Suppose y varies directly as x and y = 45 when x = 2.5. Find the constant of variation and then find y when x = 4. Ex :.

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3-8 Direct, Inverse, and Joint Variation

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3-8 Direct, Inverse, and Joint Variation Pre Calc A
Formulas • Direct y = kx • Inverse • Joint y = kxz
Ex 17: • Suppose y varies directly as x and y = 45 when x = 2.5. Find the constant of variation and then find y when x = 4.
Ex : • If y varies inversely as the square root of x and y = 20 when x = 49, find x when y = 10.
Ex last one: • If y varies jointly as x and z and y = 5 when x = -4 and z = -2, find y when x = -6 and z = -3.

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