Precalc0101to0102-page27

Precalc0101to0102-page27 - (Section 1.2: Graphs of...

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(Section 1.2: Graphs of Functions) 1.2.7 PART F: ESTIMATING DOMAIN, RANGE, and FUNCTION VALUES FROM A GRAPH The domain of f is the set of all x -coordinates of points on the graph of y = fx () . (Think of projecting the graph onto the x -axis.) The range of f is the set of all y -coordinates of points on the graph of y = . (Think of projecting the graph onto the y -axis.) Domain Think: x ± f ± Range Think: y Example 5 (Estimating Domain, Range, and Function Values from a Graph) Let = x 2 + 1 . Estimate the domain and the range of f based on its graph below. Also, estimate
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