Hey this is on the Barron's SAT Math IIC Book page 45 Which of the following functions is neither odd nor even? a) {(1,2),(4,7), (-1,2), (0,4), (-4,7)} c) {(x,y):y=x^3-1} why is a) even or odd? and isn't c) odd? Thanks in advance
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Originally Posted by fabxx Hey this is on the Barron's SAT Math IIC Book page 45 Which of the following functions is neither odd nor even? a) {(1,2),(4,7), (-1,2), (0,4), (-4,7)} c) {(x,y):y=x^3-1} why is a) even or odd? and isn't c) odd? Thanks in advance For a function to be even, then , and for to be odd, then . For a), since and , the function is even. For c), all you need is a counter-example. Pick two x values of the same magnitude, say -1 and 1. . Since , the function can't be odd.
But how about for a) (0,4)? The inverse isn't listed. Does this mean that the function is still even?
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