Debra had to come up with a unique data collection and analysis project to present to the class. After much hair$-$pulling and teeth$-$

grinding, she came up with a cool idea.

Debra's brother mowed the neighbor's lawn every week unless it didn't rain enough for the grass to grow, in which case he'd wait a few

days and then check the status again. She figured there had to be some connection between inches of rain in a week and hours of lawn

mowing $-$or rather, money earned from mowing, since he got paid by the hour. She collected weekly data for $8$ weeks using official

precipitation reports from the local news station and amounts earned from mowing according to her brother.

$($b$1)$ Use the high$-$low method to generate a cost function for this relationship. $($Round answers to $2$ decimal places, e$.$g$.15\mathrm{.}25.)$

$Y=$$$,x+$$