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Ronch [10]
3 years ago
6

The standard form of the equation of a parabola is y = 5x2 + 20x + 14.

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0
The vertex form of quadratic equation is expressed as:

y = a (x - h)² + k

We manipulate the given equation to be the same as the vertex form. First we transpose the constants to the left-hand side.

y - 14 = 5x² + 20x

Then, we factor out in right hand side the coefficient of the x² term.

y- 14 = 5 (x² + 4x)

We divide the coefficient of the x term with 2 and take its square. We add this value to both sides of the equation but we should remember that in the left-hand side we should multiply this value with five to keep it balanced.

y - 14 + 20 = 5 (x² + 4x +4)

We simplify the right-hand side as:

y + 6 = 5 (x + 2)²

We can now manipulate further the equation above in the vertex form. Thus,

y= 5 [ x- (-2)]² - 6
Ber [7]3 years ago
7 0

Answer:

y = 5(x+2)^2 - 6

Step-by-step explanation:

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