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Quadratic inequalities

Quiz by K KUMARAVELU

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Q 1/7
Score 0
What is the general form of a quadratic inequality?
29
a + b + c = 0
ax^2 + bx + c < 0 or ax^2 + bx + c > 0
ax + by = c
ax + b > 0 or ax + b < 0
ax^2 + bx + c = 0

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7 questions

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Q1
What is the general form of a quadratic inequality?
a + b + c = 0
ax^2 + bx + c < 0 or ax^2 + bx + c > 0
ax + by = c
ax + b > 0 or ax + b < 0
ax^2 + bx + c = 0
30s
Q2
Which of the following is the correct solution to the quadratic inequality x^2 - 4x < 0?
x < 2 or x > 6
x < 0 or x > 4
x < -4 or x > 0
x < -2 or x > 2
x < -6 or x > -2
30s
Q3
What is the discriminant of a quadratic equation?
b^2 - 4ac
b^2 + 4ac
2b - 4ac
b - 4ac
b^2 - 4a
30s
Q4
What is the range of a quadratic function with a > 0?
y ≥ a
y ≤ 0
y > 0
y ≥ 0
y < 0
30s
Q5
Which of the following is the correct solution to the quadratic inequality -2x^2 + 4x > 6?
x < 1 or x > 3
x < -1 or x > -3
x < -3 or x > 1
x < -1 or x > 3
x < 3 or x > -1
30s
Q6
Which of the following is the correct solution to the quadratic inequality x^2 + 2x < 3?
-3 < x < 1
x < -1 or x > 3
x < 1 or x > 3
x < -3 or x > -1
x < -3 or x > 1
30s
Q7
Which of the following is the correct solution to the quadratic inequality 2x^2 - 3x ≥ 2?
x ≤ -1/2 or x ≥ 1
x ≤ -2 or x ≥ 1/2
x ≤ -2 or x ≥ 1
x ≤ -1/2 or x ≥ 2
x ≤ -1 or x ≥ 2
30s

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