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Fed [463]
3 years ago
5

Determine whether f(x)=2x^2 -6x +k has a maximum or minimum value, and determine the maximum or minimum value.

Mathematics
1 answer:
kicyunya [14]3 years ago
4 0
Since it is a parabola if there is no negative sign in front of the equation then it will have a minimum.

The standard form of a quadratic is ax^2+bx+c
When a>0 then the equation will have a minimum.
When a<0 then the equation will have a maximum.
Honestly I have no idea what to do after that. The k is throwing me off.
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Step-by-step explanation:

Add 9 to both sides of the equation.

if you want to create a trinomial square on the left, find value that is equal to the square of half of b

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How to Simplify it:

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How to do it:

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--Then remove the perfect root factor, x - 2 under the radical to solve for x

---Remove parenthesis

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the final answer could be shown in different ways,but the exact form is x=±√13+2

In decimal form its x=5.60555127…,−1.60555127…

--this took me like 7 minutes to do im no geek tho lol

7 0
3 years ago
Diane borrowed 8000 at a rate of 7%, compounded semiannually. Assuming she makes no payments, how much will she owe after 6 year
dmitriy555 [2]

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Step-by-step explanation:

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