Solve by graphing. 4x + 2y = 2
2x + y = 4

A)one solution

B)no solutions

C)infinite solutions

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

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Alogical argument that is presented in graphical form using boxes and arrows is called?