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Using a and b to find the Vertex. Vertex Simplified. If f(x) = ax 2 + bx + c, then the vertex is:. x. Opposite of b. y is plug and chug with x. Example. Use the following equation to answer the questions below: y = -3x 2 + 6x – 7 Find the coordinates of the vertex.
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Vertex Simplified If f(x) = ax2 + bx + c, then the vertex is: x Opposite of b y is plug and chug with x
Example Use the following equation to answer the questions below: y = -3x2 + 6x – 7 • Find the coordinates of the vertex. • Write the equation in graphing form.