How many degrees larger do the angles in the lower left and lower right cornors each need to be in order to form a rectangular image

A rectangle has a right angle in every corner, so you would need to subtract the current angle from 90 to find the angle required.

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: