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Question

The graph of expression f(x) = -2 x2 + 5x + 7 looks like



A

A straight line

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B

Cup shaped parabola

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C

Cap shaped parabola

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D

Can’t say

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Solution

The correct option is C

Cap shaped parabola


Here f(x) =  – 2x2 + 5x + 7

            a = –2 < 0

So, the graph is inverted cup shaped parabola.


Mathematics

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