The vertex form of the equation of a parabola is y = 2(x + 3)2 - 5.What is the standard form of the equation?
Question
The vertex form of the equation of a parabola is y = 2(x + 3)2 - 5.What is the standard form of the equation?
Solution
The standard form of a parabola's equation is y = ax^2 + bx + c.
To convert the vertex form y = 2(x + 3)^2 - 5 to standard form, you need to expand the equation:
Step 1: Expand (x + 3)^2. This gives x^2 + 6x + 9.
Step 2: Multiply the result by 2 (the coefficient of (x + 3)^2 in the original equation). This gives 2x^2 + 12x + 18.
Step 3: Subtract 5 from the result (as per the original equation). This gives 2x^2 + 12x + 13.
So, the standard form of the equation is y = 2x^2 + 12x + 13.
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