Without graphing, determine whether the function represents exponential growth or exponential decay. Then find the y-intercept.
f(x) = 3(0.69)*

[tex]y=a(b)^x[/tex] , a is the intial amount and b is the decay or growth rate. As a general rule, if b is greater than 1, the equation is growth; if b is greater than 0 but less than 1, the equation is decay.

Our b value is a decimal portion of 1, so our equation is decay.

The y-intercept of any function exists where x = 0. If we plug in 0 for x and solve for y:

[tex]y=3(.69)^0[/tex] we get that

y = 3

Without graphing, determine whether the function represents exponential growth or exponential decay. Then find the y-intercept. f(x) = 3(0.69)*

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Without graphing, determine whether the function represents exponential growth or exponential decay. Then find the y-intercept.
f(x) = 3(0.69)*