FunctionsAuthor: Math ELS Description: Keywords: , , , , , , online teaching
Content: Quiz: 1. if f(x) = x² %2b 2x , then f(1) = ............. A) 1 B) 2 C) 4 D) 3
2. Each of the following is a function except A) y = √x B) y = 2/x C) y = 3 D) x² %2b y² = 9
3. If f(x) = x² -1, then f(3) = ....... A) f(1) B) 3 C) f(-3) D) -3
4. The domain of the function f(x) = 3 is ............ A) ℝ B) ∅ C) ℝ - {3} D) ℝ - {0}
5. The domain of the function f(x) = (x -2) / (x - 3) is ............ A) ℝ - {3} B) ℝ - { 2 , 3 } C) ℝ - {2} D) ℝ
6. The domain of the function f(x) = (2x -1) / (x %2b 4) is ............ A) ℝ - { 4 } B) ℝ - { ½ } C) ℝ - { - 4 } D) ℝ
7. The domain of the function f(x) = (x %2b1) / (3x -2) is ............ A) ℝ - { 2 } B) ℝ - { 2/3 } C) ℝ - { -1 } D) ℝ - { -1 , 2/3 }
8. If f(x) = x - 2 and g(x) = x² - 1, then f(10) = ........... A) g(10) B) g(3) C) g(8) D) g(-1)
9. If f(x) = x - 2 and g(x) = x² - 1, then f(5) - g(2) = ........... A) 0 B) 1 C) 2 D) 2
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