The vertex form of the equation of a parabola is y = (x - 3)2 + 36.What is the standard form of the equation?A.y = x2 + 6x + 36B.y = 3x2 - 6x + 45C.y = x2 - 6x + 45D.y = x2 + x + 18SUBMITarrow_backPREVIOUS
Question
The vertex form of the equation of a parabola is y = (x - 3)2 + 36.What is the standard form of the equation?A.y = x2 + 6x + 36B.y = 3x2 - 6x + 45C.y = x2 - 6x + 45D.y = x2 + x + 18SUBMITarrow_backPREVIOUS
Solution
The standard form of a quadratic equation is y = ax^2 + bx + c.
Given the vertex form of the equation y = (x - 3)^2 + 36, we can expand it to get the standard form.
First, expand (x - 3)^2. This is equivalent to (x - 3)(x - 3), which simplifies to x^2 - 6x + 9.
So, the equation becomes y = x^2 - 6x + 9 + 36.
Combine like terms to get the standard form: y = x^2 - 6x + 45.
So, the correct answer is C. y = x^2 - 6x + 45.
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