Answer:
Step-by-step explanation:
In the exponential growth/decay function,
[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
