MODELING WITH MATHEMATICS You graph an exponential function on a calculator. You zoom in
repeatedly to 25% of the screen size. The function
y = 0.25% represents the percent (in decimal form)
of the original screen display that you see, where x
is the number of times you zoom in.
a. Graph the function. Describe the domain
and range.
b. Find and interpret the y-intercept.
c. You zoom in twice. What percent of the original
screen do you see?