A recipe requires ¼ cup of oil for every ⅔ cup of water. How much oil (in cups) is needed per cup of water?
1 answer:
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Given:
The given function is:
To find:
The range of the given function.
Solution:
We have,
It is a quadratic function because the highest power of the variable x is 2.
Here, the leading coefficient is -32 which is negative. So, the graph of the given function is a downward parabola.
If a quadratic function is , then the vertex of the quadratic function is:
In the given function, .
The value of the given function at is:
The vertex of the given downward parabola is . It means the maximum value of the function is
. So,
Therefore, the range of the given function is .
