Use the diagram below to answer the questions. line q contains points j, k, and m. point p is above line q between points k and m. a line connects points m and p. another line connects points p and k. point l is above point j. a line starts at point k and extends through point l. which are shown on the diagram? check all that apply. line segment j l ray k m line j k ray p k angleljk ray m j

triangle and cube

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where's the diagram?

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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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