Which of the following demonstrates the correct first step in copying a segment? Create another line that intersects the segment
Draw a ray with one endpoint
Place a point on a different segment
swing an arc that intersects the segment

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.

step-by-step explanation: