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a function in math is most commonly used in graphing and the definition of a function is any equation that when graphed will not have 2 points on the same vertical line. the test for these is known as the vertical line test. functions include parabolas (y=x2, sine curves (y+sin(x)), lines (y=x), and polynomials (x3-4x2+9x) some things that are not functions would be circles (y=y2-x2) or side ways parabolas (x=y2).
Ans. A function is a relation in which each element of the 1st set,it corresponds to one and only one element in the 2nd set.
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A rule to get (calculate) a number from another number. ans.A function is a relation in which each element of the 1st set,it corresponds to one and only one element in the 2nd set.
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