Guided Practice x y
3 5.4
7 12.6
12 21.6

For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.

A.
yes; x = 1.8y

B.
no

C.
yes; y = 1.8x

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?