In Exercises 13-18 graph each equation in a rectangular coordinate system . If two functions are given, graph both in same system. f ( x ) = x 3 − 4 x 2 − x + 4
In Exercises 13-18 graph each equation in a rectangular coordinate system . If two functions are given, graph both in same system. f ( x ) = x 3 − 4 x 2 − x + 4
Solution Summary: The author explains the function f(x)=x
In Exercises 13-18 graph each equation in a rectangular coordinate system. If two functions are given, graph both in same system.
f
(
x
)
=
x
3
−
4
x
2
−
x
+
4
System that uses coordinates to uniquely determine the position of points. The most common coordinate system is the Cartesian system, where points are given by distance along a horizontal x-axis and vertical y-axis from the origin. A polar coordinate system locates a point by its direction relative to a reference direction and its distance from a given point. In three dimensions, it leads to cylindrical and spherical coordinates.
Jamal wants to save $48,000 for a down payment on a home. How much will he need to invest in an
account with 11.8% APR, compounding daily, in order to reach his goal in 10 years? Round to the
nearest dollar.
r
nt
Use the compound interest formula, A (t) = P(1 + 1)".
An account is opened with an intial deposit of $7,500 and earns 3.8% interest compounded semi-
annually. Round all answers to the nearest dollar.
a. What will the account be worth in 10 years? $
b. What if the interest were compounding monthly? $
c. What if the interest were compounded daily (assume 365 days in a year)? $
Kyoko has $10,000 that she wants to invest. Her bank has several accounts to choose from. Her goal is
to have $15,000 by the time she finishes graduate school in 7 years. To the nearest hundredth of a
percent, what should her minimum annual interest rate be in order to reach her goal assuming they
compound daily? (Hint: solve the compound interest formula for the intrerest rate. Also, assume there
are 365 days in a year)
%
Chapter 3 Solutions
MyLab Math with Pearson eText -- Standalone Access Card -- for Algebra and Trigonometry (6th Edition)
Precalculus: Mathematics for Calculus (Standalone Book)
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