Question

Choose all of the equation that model the situation appropriately a) y=20(1+0.25)^x Models a growth rate of 25% b) y=50000(0.8)^x Models a decay rate of 80% c)y=20(-0.18)^x models decay rate of 18% d) y=75000(1.024)^x models an increase of 2.4%

Answer 1

Answer: a and d

Step-by-step explanation: all the models are trying to make use of exponential equation.

Y = P(1 +/- R)^n

It will be plus (+) when there is a growth or increase

It will be minus when it's decreasing or decaying.