Class 11 Mathematics · Chapter 3 · Test 1
Quadratic Functions Part 1
25 MCQs This set covers the definition and graph of a quadratic function, the vertex and axis of symmetry, and absolute value.
25 questions · 20 min · 25 marks
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Sample questions
The first 5 of 25. Try each one, then tap to see the answer.
Question 1
A quadratic function is a polynomial function of degree
- AOne
- BTwo
- CThree
- DFour
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Answer: B
A quadratic function is a polynomial of degree two.
Question 2
In the standard form f(x)=ax^2+bx+c the condition on a is
- Aa=0
- Ba is not equal to 0
- Cb is not equal to 0
- Dc is not equal to 0
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Answer: B
If a=0 the function becomes linear so a must be non-zero.
Question 3
The graph of a quadratic function is a
- ACircle
- BHyperbola
- CParabola
- DStraight line
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Answer: C
The graph of f(x)=ax^2+bx+c is a parabola.
Question 4
A parabola opens upward when
- Aa>0
- Ba=0
- Ca<0
- Dc>0
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Answer: A
The sign of the leading coefficient a decides the direction of opening.
Question 5
A parabola opens downward when
- Aa>0
- Ba=0
- Ca<0
- Dc<0
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Answer: C
A negative leading coefficient makes the parabola open downward.
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