Is 1.75 a reasonable estimate of the value of square root 8

Which graph represents the solution of the inequality?

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

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?