#Help with part a)

32 messages · Page 1 of 1 (latest)

drifting violet Nov 3, 2022, 12:07 PM

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done part b already

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equated the two functions together

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i got a quadratic which is:

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x^2 -11x + 19 = 0

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not sure what to do with it next tho

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<@&791435371564892232>

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@lilac pike

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@amber eagle

drifting violet Nov 3, 2022, 12:31 PM

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<@&791435371564892232>

astral nova Nov 3, 2022, 12:31 PM

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Solve

drifting violet Nov 3, 2022, 12:31 PM

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I think I did

astral nova Nov 3, 2022, 12:31 PM

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Which part

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A?

drifting violet Nov 3, 2022, 12:31 PM

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A)

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Yeah

astral nova Nov 3, 2022, 12:32 PM

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Oh

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So they intersect at two point meaning that quadratic will have 2 solutions

drifting violet Nov 3, 2022, 12:32 PM

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Yeah

astral nova Nov 3, 2022, 12:32 PM

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So discriminant will be > 0

drifting violet Nov 3, 2022, 12:32 PM

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Yeah

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So discriminant?

astral nova Nov 3, 2022, 12:32 PM

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Yeah

drifting violet Nov 3, 2022, 12:33 PM

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Ok thanks

astral nova Nov 3, 2022, 12:33 PM

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drifting violet x^2 -11x + 19 = 0

How did you get this if there’s an a in g(x)

drifting violet Nov 3, 2022, 12:33 PM

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astral nova How did you get this if there’s an a in g(x)

They said sub a = 5 in the q I think

astral nova Nov 3, 2022, 12:34 PM

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drifting violet They said sub a = 5 in the q I think

That’s part b

drifting violet Nov 3, 2022, 12:34 PM

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Ohh

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Ok it makes more sense now

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Cos the constant would be (n+-a)

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And that would be subbed into the discriminant

drifting violet Nov 3, 2022, 1:15 PM

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astral nova That’s part b

I got a>25/4

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But the answer is a>-25/4