Lesson 2.11: Piecewise Defined Functions Answers

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28

What is the domain?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
29

What is the range?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
32

Question text not available

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
33

Question text not available

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
34

Which values of x are point(s) of discontinuity?

A
x = –6
B
x = –2
C
x = 0
D
x = 2
E
x = 4
35

Which are removable discontinuities?x = –2x = –2 and x = 0✔ x = 0 and x = 4x = –2, x = 0, and x = 4

A
x = –2
B
x = –2 and x = 0
C
✔ x = 0 and x = 4
D
x = –2, x = 0, and x = 4
36

x = –4x = –2x = 0x = 2x = 4

A
x = –4
B
x = –2
C
x = 0
D
x = 2
E
x = 4
39

Which statement is true for g(x)?

A
You can remove the discontinuity at x = 0 by defining g(0) = 0.
B
You can remove the discontinuity at x = 0 by defining g(0) = 2.
C
You can remove the discontinuity at x = 3 by defining g(3) = –1.
40

Compare and contrast the following piecewise defined functions. [image 1] [image 2]

Question illustration
Answer:

Both functions have the same domain – all real numbers except 0. Both functions are made up of linear and quadratic pieces on their domain. Neither function is continuous; f has jump discontinuity and g has point discontinuity. The range of f is y > 1 and the range of g is all real numbers except 2.

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