Find the slope of the line graphed below.

Ineed with math stuff it involves graphs

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

Identify the parent function that can be used to graph the function f(x)=3(x-9)2