In problems 43 − 54 , the function f is one-to-one. ( a ) Find its inverse function f − 1 and check your answer. ( b ) Find the domain and range of f and f − 1 . ( c ) Graph f , f − 1 , and y = x on the same coordinate axes. f ( x ) = 2 x + 3 − 5
In problems 43 − 54 , the function f is one-to-one. ( a ) Find its inverse function f − 1 and check your answer. ( b ) Find the domain and range of f and f − 1 . ( c ) Graph f , f − 1 , and y = x on the same coordinate axes. f ( x ) = 2 x + 3 − 5
Solution Summary: The author explains how to determine the inverse function f-1 and check the answer.
In problems
43
−
54
,
the function
f
is one-to-one.
(
a
)
Find its inverse function
f
−
1
and check your answer.
(
b
)
Find the domain and range of
f
and
f
−
1
.
(
c
)
Graph
f
,
f
−
1
,
and
y
=
x
on the same coordinate axes.
For each graph in Figure 16, determine whether f (1) is larger or smaller than the slope of the secant line between x = 1 and x = 1 + h for h > 0.
Explain your reasoning
Points z1 and z2 are shown on the graph.z1 is at (4 real,6 imaginary), z2 is at (-5 real, 2 imaginary)Part A: Identify the points in standard form and find the distance between them.Part B: Give the complex conjugate of z2 and explain how to find it geometrically.Part C: Find z2 − z1 geometrically and explain your steps.
A polar curve is represented by the equation r1 = 7 + 4cos θ.Part A: What type of limaçon is this curve? Justify your answer using the constants in the equation.Part B: Is the curve symmetrical to the polar axis or the line θ = pi/2 Justify your answer algebraically.Part C: What are the two main differences between the graphs of r1 = 7 + 4cos θ and r2 = 4 + 4cos θ?
Chapter 4 Solutions
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)
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