write the formula for the exponential function

Question

write the formula for the exponential function whose initial value is 5 and decreases with a continuos rate of 15%. Then sketch the graph of the function.

Answer 1

y=5(.85)^x

(0,5), (1, 4.25), (2, 3.6125), ...

y = 0 is the horizontal asymptote

no vertical asymptote

no x intercept

y intercept = 5