Relations and Functions
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4/13/2017 ALEKS 360
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4. The graph of a quadratic function is a .
5. An function has a V-shaped graph.
True or false?
6. The graph of a function is a picture of all of the ordered pairs of the function.
7. The domain of f(x) = 3 is (−∞, ∞).
8. The range of a quadratic function is (−∞, ∞).
9. The y-axis and the f(x)-axis are the same.
10. The domain of x = y2 is [0, ∞).
11. The domain of is (1, ∞).
12. The domain of a quadratic function is (−∞, ∞).
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Exercises Study Tips
Success in school depends on effective time management, which is all about goals.
Write down your long-term, short-term, and daily goals. Assess them, develop methods for meeting them, and reward yourself when you do.
1 Linear and Constant Functions
Graph each function, and state its domain and range. See Examples 1 and 2.
1. h(x) = −2
2. f(x) = 4
3. f(x) = 2x − 1
Exercise 3 - Linear and Constant Functions
4. g(x) = x + 2
5.
6.
7.
8.
9. y = −0.3x + 6.5
10. y = 0.25x − 0.5
2 Absolute Value Functions
Graph each absolute value function and state its domain and range. See Examples 3 and 4.
