2. Vanessa wants to model how a car's maintenance costs change as the distance someone drives the car increases. What would be a
1 answer:
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Explanation:
Conversion of a quadratic equation from standard form to vertex form is done by completing the square method.
Assume the quadratic equation to be where x is the variable.
Completing the square method is as follows:
- send the constant term to other side of equal
- divide the whole equation be coefficient of
, this will give
- add
to both side of equality
- Make one fraction on the right side and compress the expression on the left side
- rearrange the terms will give the vertex form of standard quadratic equation
Follow the above procedure will give the vertex form.
(NOTE : you must know that . Use this equation in transforming the equation from step 3 to step 4)
Given expression is
Radical is fourth root
first we simplify the terms inside the radical
So the expression becomes
Now we take fourth root
We cannot simplify fourth root (y^2)
After simplification , expression becomes
Answer is option B