1. Which relation is a function? A. {(x, y) | |x| + 1 = 5} B. {(x, y) | 2x? - y? = 1} C. {(x, y) | x-2 s y} D. {(x, y) | 5x2 + y = 2y - x}

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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1. Which relation is a function?
A. {(x, y) | Ixl + 1 = 5}
B. {(x, y) | 2x? – y? = 1}
C. {(x, y) | x-2 sy}
D. {(x, y) | 5x2 + y = 2y – x}
2. Which of the following is a graph of a function?
C.
A.
D.
x2-x-2
3. The graph of the function f(x) = ;
has vertical asymptote/s with equation
2x2+x-1
C. x =
A. x = 1
B. x = -1
D. x =; & x = -1
1. Consider the function defined by:
(x² – 1, if x > 1
f(x) = {2,
(2x+3, if x < 1
if x = 1
What is f(-1)?
A. -1
C.1
В. О
D. 2
B.
Transcribed Image Text:1. Which relation is a function? A. {(x, y) | Ixl + 1 = 5} B. {(x, y) | 2x? – y? = 1} C. {(x, y) | x-2 sy} D. {(x, y) | 5x2 + y = 2y – x} 2. Which of the following is a graph of a function? C. A. D. x2-x-2 3. The graph of the function f(x) = ; has vertical asymptote/s with equation 2x2+x-1 C. x = A. x = 1 B. x = -1 D. x =; & x = -1 1. Consider the function defined by: (x² – 1, if x > 1 f(x) = {2, (2x+3, if x < 1 if x = 1 What is f(-1)? A. -1 C.1 В. О D. 2 B.
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