Hello from MrBillDoesMath!
Answer:
exponential growth , y-intercept 3
Discussion:
Any equation of the form b^x (b a constant) models exponential growth.
The y-intercept value is the value of y when x = 0, that is,
y = 3 (0.59)^0 = 3 * 1 = 3
Thank you,
MrB