Exponential Function An exponential growth or decay function is a function that grows or shrinks at a constant percent growth rate. The equation can be written in the form f(x) = a(1+r)* or f(x)=abx where b=1+r Where a is the initial or starting value of the function r is the percent growth or decay rate, written as a decimal b is the growth factor or growth multiplier. Since powers of negative numbers behave strangely, we limit b to positive values. Question 1 A population numbers 13,000 organisms initially and grows by 17.2% each year. 0/1 pt 100 Details Suppose P represents population, and t the number of years of growth. An exponential model for the population can be written in the form P a b' where a= and b= Question Help: Video Post to forum Submit Question Exponential Decay Textbook: Section 4.1 Example 3 Exponential Function Application (y-ab'x) - Depr Exponential Functions: f(x) = a(b)* The average car depreciation rate is 15% per year. If MacBook esc 2 #C $ EA Search or enter website % de L