use a graphing utility to graph each equation. Does this agree with the answer you gave in the Conceptual section? (x 2)2 (y 5)2 20 (See Exercise 73 for comparison.)
L9 - 8 Def. Aufn f is continuous from the right at x = c if f is continuous from the left at c if In our example, is f continuous from the right or left at x =0 At x =1 Continuity on Intervals Afntiicniusnanneal I if it is continuous at each x-value in If.I f is deﬁned only on one side of an endpoint of the interval, we consider continuity to be continuity from the left or right. On an interval for which a function is continuous its graph has no jumps, holes, or gaps.