Question 26996
(800+2.25x)(0.25x-40)
200x+0.5625x^2-32000-90x
110x+0.5625x^2-32000
x=160


For every $0.25 decrease about 160 customers will come.
The graph is a parabola.
To find the domain and range. Start with -2 for x and solve for y
Go from -2 to 2.
Domain--RAnge
1. -2----3417.75



DO this upto 2 and as x aprroches a numerical value.
Domain is the independant or the x-value and the range is the dependant or the y-value.
PAul.