Question

An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that apply.

-this situation can be represented by the quadratic function f(x)=0.15(x+60)2
-this situation can be represented by the exponential function f(x)=60*1.15x
-this function has no x intercept
-after 4 years, the value of the investment will be $120
-after 6 years, the value of the investment will be $653
-after 7.86 years the value of the investment will be 3 times the initial value
-after 8 years, the value of the investment will be $184

Answer 1

It also doesnt have an X intercept

Explanation:

Answer 2

15% each yer
represented by
f(x)=60(1.15^x)

xintercept is when the function equals zero
since it increases only, it cannot equal zero and does not have an x intercept

after 4 years the investment value is 104
after 6 yaers value is 138.7
after 7.86 years the value is179.98 which is roughly 3 times of 60
8 years later183.54 close enough










answers
f(x)=60*1.15^x
after 7.86 years value is 3 times initioal value
after 8 years value is 184