quadratic inequalities multiple choice questions, math homework help
Which graph shows the inequality?
y ≥ 2×2 + x - 3
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A.
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B.
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C.
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D.
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The graph of a quadratic inequality is shown below. Use the graph to find the solutions to the inequality in terms of x.
a. x ≤ -2 or x ≥ 1
b. x < 2 or x > 1
c. -2 ≤ x ≤ 1
d. -2 < x < 1
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The graph of a quadratic inequality is shown below. Use the graph to find the solutions to the inequality in terms of x.
a. x < -1 or x > 4
b. x ≤ -1 or x ≥ 4
c. -1 ≤ x ≤ 4
d. -1 < x < 4
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Choose the statement that is true about the graph of the quadratic inequality.
y ≤ 5×2 + 6x + 2
a. Points on the parabola are not solutions.
b. The vertex is (-3/5, 1/5) .
c. The parabola opens down.
d. (0, 0) is not a solution.
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Which ordered pair is not a solution to the inequality?
y ≥ 2×2 - 7x - 10
a. (0, -4)
b.(-1,-1)
c. (4,-13)
d. (5,15)
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Which quadratic inequality is graphed below?
a. y ≥ x2 + 2
b. y ≤ x2 - 2
c. y ≥ (x - 2)2
d. y ≥ (x + 2)2
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Find the solutions to the inequality.
x2 + 7x - 8 > 0
a. x < – 8 or x > 1
b. – 8 < x < 1
c. x < - 1 or x > 8
d. -1 < x < 8
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Find the solutions to the inequality.
x2 + 3x - 28 < 0
a. x < -7 or x > 4
b. x < -4 or x > 7
c. -7 < x < 4
d. -4 < x < 7
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Which graph shows the inequality?
y < 2×2 + 3x – 5
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A.
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B.
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C.
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D.
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If (x + 1)(x - 2) is positive, which statement must be true?
a. x < - 1 or x > 2
b. x > – 1 or x < 2
c. – 1 < x < 2
d. -2 < x < 1
