Graphing Absolute Value Equations PDF

Summary

This document provides practice questions and answers on graphing absolute value equations and their transformations. It covers concepts like vertex, shifts, stretches, and reflections. The problems include practical exercises on solving absolute value equations.

Full Transcript

Graphing Absolute Value Equations Part 1 1. What is the shape of the graph of an absolute value function? A) Parabola B) V-shape C) Line D) Circle Correct Answer: B) V-shape 2. What is the vertex of the absolute value function f(x) = |x|? A) (1, 0) B) (0, 1)...

Graphing Absolute Value Equations Part 1 1. What is the shape of the graph of an absolute value function? A) Parabola B) V-shape C) Line D) Circle Correct Answer: B) V-shape 2. What is the vertex of the absolute value function f(x) = |x|? A) (1, 0) B) (0, 1) C) (0, 0) D) (-1, 0) Correct Answer: C) (0, 0) 3. Which of the following is the graph of f(x) = |x - 3|? A) V-shape shifted 3 units right B) V-shape shifted 3 units left C) V-shape shifted 3 units up D) V-shape shifted 3 units down Correct Answer: A) V-shape shifted 3 units right Graphing Absolute Value Equations Part 2 4. What does the graph of f(x) = -|x| look like? A) V-shape pointing upwards B) V-shape pointing downwards C) U-shape pointing upwards D) Line Correct Answer: B) V-shape pointing downwards 5. In f(x) = a|x|, if a > 1, the graph will be: A) Stretched vertically B) Compressed vertically C) Shifted to the left D) Shifted to the right Correct Answer: A) Stretched vertically 6. What is the effect of a negative coefficient in front of the absolute value function, f(x) = -|x|? A) The graph opens up B) The graph opens down C) The graph shifts left D) The graph shifts right Correct Answer: B) The graph opens down OC 6.2 Translating the Graph of f(x) = x 7. What is the effect of adding a constant to f(x) = |x|? A) Vertical stretch B) Vertical shift C) Horizontal shift D) Reflection Correct Answer: B) Vertical shift 8. What happens to the graph of f(x) = |x| if you subtract 2 from x (f(x) = |x - 2|)? A) The graph shifts 2 units left B) The graph shifts 2 units right C) The graph shifts 2 units up D) The graph shifts 2 units down Correct Answer: B) The graph shifts 2 units right 9. In f(x) = |x| + 4, what does the "+4" represent? A) Shift 4 units up B) Shift 4 units down C) Stretch by 4 D) Reflect over the x-axis Correct Answer: A) Shift 4 units up OC 6.3 Stretching, Shrinking, and Reflecting the Graph of f(x) = |x| 10. What is the effect of multiplying the absolute value function by a constant greater than 1? A) Vertical stretch B) Vertical shrink C) Horizontal stretch D) Reflection Correct Answer: A) Vertical stretch 11. What does multiplying the absolute value function by a fraction between 0 and 1 do? A) Vertical stretch B) Vertical shrink C) Horizontal shrink D) Horizontal shift Correct Answer: B) Vertical shrink 12. What happens when f(x) = -|x| compared to f(x) = |x|? A) Graph is shifted up B) Graph is reflected over the x-axis C) Graph is stretched D) Graph is compressed Correct Answer: B) Graph is reflected over the x-axis 13. Which of the following represents a vertical shrink of f(x) = |x|? A) f(x) = 2|x| B) f(x) = 0.5|x| C) f(x) = -|x| D) f(x) = |x + 2| Correct Answer: B) f(x) = 0.5|x| OC 6.4 Combining Transformations of the Graph of f(x) = |x| 14. Which equation represents a reflection over the x-axis and a vertical stretch of f(x) = |x|? A) f(x) = -2|x| B) f(x) = 2|x| C) f(x) = -|x + 2| D) f(x) = |x| - 2 Correct Answer: A) f(x) = -2|x| 15. What happens in the graph of f(x) = |x - 3| + 5? A) Shift 3 units left, 5 units down B) Shift 3 units right, 5 units up C) Shift 3 units right, 5 units down D) Shift 3 units left, 5 units up Correct Answer: B) Shift 3 units right, 5 units up 16. How does the graph of f(x) = |x + 1| - 2 compare to f(x) = |x|? A) Shift 1 unit left, 2 units down B) Shift 1 unit right, 2 units up C) Shift 1 unit left, 2 units up D) Shift 1 unit right, 2 units down Correct Answer: A) Shift 1 unit left, 2 units down 6.5 Solving Absolute Value Equations 17. What are the solutions to the equation |x| = 4? A) x = 4 B) x = -4 C) x = 4 or x = -4 D) x = 0 Correct Answer: C) x = 4 or x = -4 18. What is the first step to solve |x - 3| = 7? A) Add 3 to both sides B) Subtract 3 from both sides C) Set up two equations: x - 3 = 7 and x - 3 = -7 D) Set up two equations: x + 3 = 7 and x + 3 = -7 Correct Answer: C) Set up two equations: x - 3 = 7 and x - 3 = -7 19. Solve |x + 2| = 5. A) x = 3 B) x = 7 or x = -7 C) x = 3 or x = -7 D) x = 3 or x = -3 Correct Answer: D) x = 3 or x = -7 20. What are the solutions to the equation |x - 1| = 8? A) x = 1 B) x = 1 or x = -1 C) x = 9 or x = -7 D) x = 7 or x = -9 Correct Answer: C) x = 9 or x = -7 21. Solve |2x + 4| = 10. A) x = 3 or x = -7 B) x = 5 or x = -5 C) x = 2 or x = -2 D) x = 7 or x = -7 Correct Answer: A) x = 3 or x = -7 22. Solve |x| + 3 = 7. A) x = 7 or x = -7 B) x = 4 or x = -4 C) x = 3 or x = -3 D) x = 2 or x = -2 Correct Answer: B) x = 4 or x = -4 23. Which of the following equations has no solution? A) |x| = -5 B) |x| = 0 C) |x| = 1 D) |x| = 5 Correct Answer: A) |x| = -5 24. Solve |3x - 6| = 12. A) x = 6 or x = -6 B) x = 2 or x = -2 C) x = 3 or x = -3 D) x = 6 or x = 0 Correct Answer: D) x = 6 or x = 0 25. Solve |4x + 8| = 0. A) x = 2 B) x = -2 C) x = 0 D) No solution Correct Answer: B) x = -2 Challenge Questions 26. Which of the following represents a reflection and a shift of 2 units left? A) f(x) = -|x - 2| B) f(x) = -|x + 2| C) f(x) = |x - 2| + 2 D) f(x) = |x + 2| - 2 Correct Answer: B) f(x) = -|x + 2| 27. Solve |5x - 7| = 2. A) x = 1 or x = -1 B) x = 9/5 or x = 1 C) x = 5/9 or x = -5 D) x = 9/5 or x = 1 Correct Answer: B) x = 9/5 or x = 1 28. What transformation has occurred in f(x) = 0.5|x|? A) Vertical stretch B) Vertical shrink C) Horizontal shift D) Reflection Correct Answer: B) Vertical shrink 29. What happens when you reflect f(x) = |x| over the y-axis? A) Graph stays the same B) Graph shifts to the left C) Graph shifts down D) Graph flips over Correct Answer: A) Graph stays the same 30. Solve |x + 3| - 4 = 2. A) x = 2 or x = -4 B) x = 3 or x = -5 C) x = 1 or x = -7 D) x = 3 or x = -9 Correct Answer: C) x = 1 or x = -7

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