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timofeeve [1]
3 years ago
8

PLEASE SIMPLIFY THIS​

Mathematics
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

15y / 8

Step-by-step explanation:

Multiplying by 2 to get the common denominator.

3y / 4 * 2 = 6y / 8

Combine like terms.

6y / 8 + 9y / 8

Final Answer:

15y / 8

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What are the coordinates of the vertex of the parabola with the equation y = x + 2x - 3?
loris [4]

Answer:

<em>The coordinates of the vertex are (-1,-4).</em>

Step-by-step explanation:

<u>Equation of the Quadratic Function </u>

The vertex form of the quadratic function has the following equation:

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Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.

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y=x^2+2x-3

We must transform the equation above by completing squares:

The first two terms can be completed to be the square of a binomial. Recall the identity:

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Thus if we add and subtract 1:

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Operating:

y=(x^2+2x+1)-4

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Adding 4:

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The coordinates of the vertex are (-1,-4).

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