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Quadratic equation

Quiz by Ypril Mae Aquino

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10 questions

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Q1
30s
Q2
Which of the following quadratic equations has roots that are equal?
$x^2 - 6x + 9 = 0$
$x^2 - 5x + 6 = 0$
$x^2 + 2x + 2 = 0$
$x^2 - 4x + 5 = 0$
30s
Q3
30s
Q4
Which of the following quadratic equations does NOT have real roots?
$x^2 + x - 2 = 0$
$x^2 - 2x - 3 = 0$
$x^2 + 4x + 5 = 0$
$x^2 - 4x + 4 = 0$
30s
Q5
30s
Q6
30s
Q7
30s
Q8
If the discriminant of a quadratic equation is zero, what can be said about the roots of the equation?
The equation has exactly one real root.
The equation has two distinct real roots.
The equation has no real roots.
The equation has complex roots.
30s
Q9
30s
Q10
Which quadratic equation represents a parabola that opens downwards?
$y = 0.5x^2 + x - 2$
$y = 2x^2 + 3x + 5$
$y = x^2 - 6x + 9$
$y = -2x^2 + 4x - 1$
30s

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