Describe a strategy that you could use if you were teaching a first grader, a third grader, and a sixth grader about geometric shapes/concepts. explain why differentiation is important in this instance. in addition, describe a strategy that you could use if were teaching, or reinforcing, geometric concepts at the high school level (grades 9-12).

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

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c.)

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i suppose it should be (y=2x-5)

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the opening of this porabola is facing up

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