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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Functions
Graphs of Functions and Relations
Warm-Ups
1
The graph of a function is a picture of all ordered pairs of the function.
A)
TRUE
B)
FALSE
2
The graph of every linear function is a straight line.
A)
TRUE
B)
FALSE
3
The absolute value function has a V-shaped graph.
A)
TRUE
B)
FALSE
4
The domain of f (x) = 1/x is (-∞, ∞).
A)
TRUE
B)
FALSE
5
The graph of a quadratic function is a parabola.
A)
TRUE
B)
FALSE
6
The range of any quadratic function is (-∞, ∞).
A)
TRUE
B)
FALSE
7
The y-axis and the f (x)-axis are the same.
A)
TRUE
B)
FALSE
8
The domain of x = y
2
is [0, ∞).
A)
TRUE
B)
FALSE
9
The domain of f (x) = (x - 1)
1/2
is (1, ∞).
A)
TRUE
B)
FALSE
10
The domain of any quadratic function is (-∞, ∞).
A)
TRUE
B)
FALSE
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