(Section 1.2: Graphs of Functions) 1.2.7 PART F: ESTIMATING DOMAIN, RANGE, and FUNCTION VALUESFROM A GRAPHThe domainoffis the set of all x-coordinatesof points on the graph of y=fx(). (Think of projecting the graph onto the x-axis.) The rangeoffis the set of all y-coordinatesof points on the graph of y=. (Think of projecting the graph onto the y-axis.) DomainThink: x±f±RangeThink: yExample 5 (Estimating Domain, Range, and Function Values from a Graph)Let =x2+1. Estimate the domain and the range offbased on its graph below. Also, estimate
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