Find the requested information. (Section 3.2, Objective 3) 95. Find the output value that corresponds to the input value of 3 for the relation {(-5, -2), (-3, 0), (3, 8), (3, -5)}. 96. Find the input values that correspond to the output value of 0 for the relation whose graph is shown. 4 2 8 4 –4 –4 –2 –8 x y 97. Mary and her friends share their 2008 U.S. Presidential election votes as shown in the mapping. Determine if the relation is a function. If not, explain why. (Section 3.3, Objective 1) c m c Find the requested information. (Section 3.3, Objective 3) 98. Find f (-1) if f (x) = 6x - 14. 99. Find f (-4) if f (x) = 12x + 23. 100. Use the graph of h(x) to find all x for which h(x) = 2. 12 4 4 8 8 12 –4 –4 –8 x h(x) 101. Find f (2) if f (x)=-x2 + 3x. 102. Find f (3) if the function f (x) is given by Y1. 103. The life expectancy for all sexes and races can be modeled by the equation f (x) = 0.000158x 3 - 0.0104x2 + 0.372x + 70.813, where x is the number of years after 1970. Find f (40) and interpret its meaning. Round the answer to the nearest whole number. (Source: National Center for Health Statistics) (Section 3.3, Objective 4) 104. Find the domain and range of the function represented by the set {(-12, 7), (-8, -20), (15, 0), (0, 19)}. (Section 3.4, Objective 1) Find the domain of each function. (Section 3.4, Objective 3) 105. f (x) = 4x2 - 1 106. f (x) = 16 + 2x 210 Chapter 3 Graphs, Relations, and Functions
hendricks_intermediate_algebra_1e_ch1_3
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