The general symbolic proof below is an illustration of what type of proof? Given: w is true
Prove: w → x is true

Assume that ~x is true. Then, ~x → y, and y → z. Since z → ~w, ~x → ~w must be true by the law of syllogism. Therefore, w → x is true.

A.
proof by contradiction
B.
proof by direct reasoning
C.
proof by law of syllogism
D.
proof by contraposition

How do the graphs of y = 1/x and y=5/x+6 compare?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x