The graph shows the speed of sam’s car over time.
a graph titled speed of car. the horizontal axis shows time (hours) and the vertical axis shows speed (m p h). both axes are unnumbered. a line appears in 4 sections, labeled a, b, c, d. section a shows a rise in speed over time, sections b and d maintain a level speed over time, and section c shows a reduction in speed over time.
which best describes what is happening in section c?

there will be 35 boys in each team. : )

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: