Integrated Algebra - January 2010

17 The graph of the equation y = |x| is shown in the diagram below.

18 Which relation represents a function?

(1) {(0,3), (2,4), (0,6)}
(2) {(-7,5), (-7,1), (-10,3), (-4,3)}
(3) {(2,0), (6,2), (6,-2)}
(4) {(-6,5), (-3,2), (1,2), (6,5)}

19 Which scatter plot shows the relationship between x and y if x represents a student score on a test and y represents the number of incorrect answers a student received on the same test?

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