What do you notice ? plezzzzz say
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We will notice that,
The mouth of parabola formed by graph of y = x^2 - x - 6, will be upwards because the coficient of x^2 is positive.
The mouth of parabola formed by the graph of y = 6 - x - x^2, will be downwards because the coficient of x^2 is negative.
The mouth of parabola formed by graph of y = x^2 - x - 6, will be upwards because the coficient of x^2 is positive.
The mouth of parabola formed by the graph of y = 6 - x - x^2, will be downwards because the coficient of x^2 is negative.
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