A vertical line has a run which is
A. 1
B. undefined
C. zero
D.-1

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

50 points~ ! i have to turn this in tomarrow