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Questions and Answers
Which of the following is a possible quadratic equation with roots of -3 and 4?
Which of the following is a possible quadratic equation with roots of -3 and 4?
- x^2 - x + 12
- x^2 + x - 12 (correct)
- x^2 - x - 12
- x^2 + x + 12
A quadratic function has a vertex at (2, -5) and a y-intercept of -3. Which of the following could be its equation?
A quadratic function has a vertex at (2, -5) and a y-intercept of -3. Which of the following could be its equation?
- y = -2(x - 2)^2 - 3 (correct)
- y = -2(x + 2)^2 - 3
- y = 2(x + 5)^2 - 3
- y = 2(x - 5)^2 - 3
The graph of a quadratic function has x-intercepts at (-2, 0) and (6, 0), and a y-intercept of (0, -24). Which of the following could be its equation?
The graph of a quadratic function has x-intercepts at (-2, 0) and (6, 0), and a y-intercept of (0, -24). Which of the following could be its equation?
- y = -2x^2 - 8x + 24
- y = 2x^2 - 8x - 24
- y = -2x^2 + 8x - 24
- y = 2x^2 + 8x - 24 (correct)
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