This rectangle has an area of x^2-15x+56 and a length of x-7 meters. What expression represents the width of the rectangle? Widt
1 answer:
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Let's compare the given function with the model for a quadratic equation:
Since the value of a is positive, the parabola has its concavity upwards, and the function has a minimum value.
The minimum value can be found calculating the y-coordinate of the vertex:
Therefore the minimum value is -24.