Quadratic Equations
India
Class XI
Definite and indefinite quadratics
Interactive practice questions
Consider the quadratic equation $y=7x^2+8x+3$y=7x2+8x+3.
a
Evaluate its discriminant.
b
By referring to the discriminant and to the coefficient of $x^2$x2, one can conclude that the function is:
Negative definite
A
Indefinite
B
Positive definite
C
c
Which graph represents the quadratic equation?
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A
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B
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C
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D
Easy
2min
Consider the quadratic function $y=-4x^2+2x-1$y=−4x2+2x−1.
Easy
2min
Consider the quadratic equation $y=3x^2+18x+7$y=3x2+18x+7.
Easy
1min
Consider the quadratic function $y=-2x^2+10x-8$y=−2x2+10x−8.
Medium
1min
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