$\"\"$

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The function $\"\"$ .

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1. Draw a coordinate plane.

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2. Graph the function.

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Graph :

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$\"graph$

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Observe the graph of "f " is a parabola.

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Vertex: $\"\"$ .

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Axis of symmetry : x - axis.

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X - intercepts : $\"\"$ and $\"\"$ . $\"\"$

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Check algebraically : \ \

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The quadratic function $\"\"$ .

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Rewrite the function as $\"\"$ .

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The above equation represent a standard form of parabola $\"\"$ .

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$\"\"$ .

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Axis of symmetry $\"\"$ .

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Thus, the axis of symmetry $\"\"$ .

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Substitute the value of x in $\"\"$ .

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$\"\"$

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Vertex of parabola $\"\"$ .

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To find the x-intercept, substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Thus, the x - intercepts are $\"\"$ and $\"\"$ .

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$\"\"$

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The function $\"\"$ graph is

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$\"graph$

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Vertex : $\"\"$ .

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Axis of symmetry : $\"\"$

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X - intercepts : $\"\"$ and $\"\"$ .