SOLUTION: express the statement as an equation. use the given information to find the constant of proportinallity k. y is directly proportional to x. if x=8, then y=80

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: express the statement as an equation. use the given information to find the constant of proportinallity k. y is directly proportional to x. if x=8, then y=80      Log On


   



Question 1054610: express the statement as an equation. use the given information to find the constant of proportinallity k. y is directly proportional to x. if x=8, then y=80
Answer by ikleyn(52786) About Me  (Show Source):
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express the statement as an equation. use the given information to find the constant of proportionality k.
y is directly proportional to x. if x=8, then y=80
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y = kx.

80 = k*8 ---> k = 10.

y = 10*x.