Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

Which of the following is an example of direct variation?

OpenStudy (anonymous):

Welcome to Open Study askljfdalkhfiu!

OpenStudy (anonymous):

is an example of direct variation?

OpenStudy (anonymous):

Definition: A relationship between two variables in which one is a constant multiple of the other. In particular, when one variable changes the other changes in proportion to the first.

OpenStudy (anonymous):

So y = kx, where k is a constant.

OpenStudy (anonymous):

Anything like that is a direct variation since y is proportion to it.

OpenStudy (anonymous):

So here's a example: Cost of filling up a car with gas varies directly with the number of gallons of gasoline that you purchase. If a gallon of gas costs $3.00, how many gallons could you purchase for $18?

OpenStudy (anonymous):

x = # of gallons purchased y = cost to fill the car up y = kx 3.00 = k*1

OpenStudy (anonymous):

y = 3.00x 18 = 3x x = 18/3 x = 6

OpenStudy (anonymous):

I hope that made sense lol.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!