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6.3 graph using x-intercepts

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by the end of this lesson you will be able to:

- solve a quadratic in standard form- use the roots to find the vertex- graph the quadratic relation- you will also be able to use the graph of a quadratic relation to write the equation of it in standard form

- solve a quadratic in standard form

- use the roots to find the vertex

- graph the quadratic relation

- you will also be able to use the graph of a quadratic relation to write the equation of it in standard form

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video tutorials for 6.3

video #1 - Graph using x-interceptsvideo #2 - write the equation in standard form based on the graph

video #1 - Graph using x-intercepts

video #2 - write the equation in standard form based on the graph

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video #1

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video #2

Ontario curriculum

Overall Expectations

- solve problems involving quadratic relations.

Specific Expectations:

- identify the key features of a graph of a parabola (i.e., the equation of the axis of symmetry, the coordinates of the vertex, the y-intercept, the zeros, and the maximum or minimum value), and use the appropriate terminology to describe them;

- sketch the graph of a quadratic relation that is given in standard form

- determine the zeros and the maximum or minimum value of a quadratic relation from its graph