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Functions

Functions

Functions: Inequalities for All! True or False

1. Which of the following could be the graph of y = (x – 1)(x + 2)?

image

g(x)

2. What are the x-intercepts of the function y = - 3x2 – 6x + 24?

-4, 2

3. What is the vertex of the parabola given by the equation y = 4x2 + 9x + 6?


4. Which of the following statements is false?The graph of a quadratic function can have multiple y-intercepts.
5. Which of the following could be the graph of the function y = -(x2 + 1)?

f(x)


6. Which of the following could be the graph of the function y = -3-x?

g(x)

7. Which of the following could be the graph of the function y = 5 – 3x?

u(x)

8. Which of the following points is in the relation described by the inequality  ?

(6, -1)

9. Which of the following could be the graph of the inequality y > 7x – 6?

Inequality 1


10. Which of the following could be the graph of the inequality -x ≥ 4?

Inequality 2


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