Question

You deposit $125 at 4% interest compounded annually.

Create an equation and determine which of the following ordered pairs are a part of the solution set.
(1,130)
(3,111)
(4,106)
(5,152)
(2,135.2)

Answer 1

growth equation : f(x) = a(1+r)^x. a = base amount r = rate x = time

In this problem a = 125 & r = 4% or 0.04
so the equation is :
f(x) = 125(1+0.04)^x

Now u just substitute the x value to see which ones make the equation true

answers :

(1,130)

(5,152)

hope this helped =)