18. FINANCIAL LITERACY The average annual price of crude oil can be modeled by the cubic function f(x) = 0.2728x^3- 2.612x^2+ 7.02x + 89.18, where x is the number of years after Gena began driving and f(x) is the price in dollars.
a. Graph the function for 0≤ x ≤ 10
b. Describe the turning points of the graph and its end behavior.
c. What trends in crude oil prices does the graph suggest?
d. Is it reasījnable that the trend will continue indefinitely? Explain.

you can just substitute x as 0,1,2,3,4till 10 and you can express in graph .e.g like

x = 0

f(0) = 0.2728(0)³- 2.612(0)²+ 7.02(0)+89.18

= 89.18

so you can countinous do like that till 10 as it mention in question

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of

two? xd

step-by-step explanation: