Is 1/2 natural number ,integer, irrational number, or a real number

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Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9