Which of the quadratic functions has the narrowest graph?

-3x²

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1/ 7 x²

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1/3 x²

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-4x²

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Solution

The correct option is D
-4x²

More the magnitude of "a" narrow is the width of the graph.

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Similar questions

Q. Question 2
Which of the following is not a quadratic equation?
(a)

2 (x - 1)^{2} = 4 x^{2} - 2 x + 1

(b)

2 x - x^{2} = x^{2} + 5

(c)

{(\sqrt{2} x + \sqrt{3})}^{3} = 3 x^{2} - 5 x

(d)

(x^{2} + 2 x)^{2} = x^{4} + 3 + 4 x^{2}

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(i) x² + 2x + 1 = 0
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Q. Question 1
Which of the following is a quadratic equation?
(a)

x^{2} + 2 x + 1 = (4 - x)^{2} + 3

(b)

- 2 x^{2} = (5 - x) (2 x - \frac{2}{5})

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4 x^{2} + \frac{1}{x^{2}}

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Which of the quadratic functions has the narrowest graph?

The correct option is D -4x2 More the magnitude of "a" narrow is the width of the graph.

The correct option is D
-4x²

More the magnitude of "a" narrow is the width of the graph.