Complete the square in a quadratic expression to reveal the maximum or minimum value of the function it defines.

Sample Practice Questions (3)

Which equation represents the parabola shown in the graph?

y = (x - 1)^{2} - 4

y = (x + 1)^{2} - 4

y = (x - 1)^{2} + 4

y = x^{2} - 2 x - 3

Based on the graph of the parabola provided, which equation in vertex form correctly represents the function and reveals its minimum value?

f (x) = (x - 2)^{2} - 1

f (x) = (x + 2)^{2} - 1

f (x) = (x - 2)^{2} + 1

f (x) = (x + 2)^{2} + 1

Which equation represents the parabola shown in the diagram?

y = (x - 2)^{2} - 3

y = (x + 2)^{2} - 3

y = (x - 2)^{2} + 3

y = x^{2} - 4 x + 1

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