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MakcuM [25]
2 years ago
5

Given that y = 6 + 4x-x^2express y in the form a.-(x + b)^2, where a and b are

Mathematics
1 answer:
Y_Kistochka [10]2 years ago
4 0

Answer:

6 + 4x − x² = 10 − (x − 2)²

the turning point : (2 , 10)

Step-by-step explanation:

6 + 4x − x² =  − x² + 4x + 6

                 = − (x² − 4x) + 6

                 = − (x² − 4x + 4 − 4) + 6

                 = − [(x − 2)² − 4] + 6

                 = − (x − 2)² + 4 + 6

                 = − (x − 2)² + 10

                 = 10 − (x − 2)²

Then the turning point of y is (2 , 10)

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How to prove quadrilaterals are parallelograms?
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AB: 24

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CD: 24

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Step-by-step explanation:

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AB = DC

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Now you have a system of equations that you can solve by substitution.

Solve for y in the first equation by subtracting 2 from both sides.

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Subtract 3y from both sides of the equation.

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Divide both sides of the equation by negative 1 to make y a positive number.

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Substitute this value of y into the second equation we made.

3x + 6 = (11) + 4

Combine like terms on the right side of the equation then subtract 6 from what you get.

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Divide both sides of the equation by 3.

  • x = 3

To find the length of each side of the parallelogram, substitute x into AD and y into AB.

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Since AD = BC and AB = DC, you know the lengths for these sides as well.

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