Question

what is a direct variation?

Answer 1

A direct variation is a situation in which two quantities -- such as hours and pay, or distance and time -- increase or decrease at the same rate. The ratio between the quantities is constant; that is, as one quantity doubles, the other quantity also doubles.

Answer 2

Example 4: y varies directly as x . If the constant of variation is , graph the line which represents the variation, and write an equation that describes the variation. To calculate the constant of variation, given a graph of direct variation, simply calculate the slope.

Answer 3

thanks!!!

Answer 4

the dependent variable changes as the independent variable changes by a constant amount.
an example would the pay you receive for a certain number of hours.
more hours more pay and the amount of pay, dependent variable is hourly rate a constant times the number of hours, independent variable

Answer 5

thank you!!!!!!

Answer 6

you are welcome