Question

What is the slope of the line represented by the table below?
x y
8 18
20 42
28 58
48 98
72 146


A. 2
B. 5/3
C. 1
D. 3

UPDATE: IT'S A.

Answer 1

slope=y2-y1/x2-x1 so choose two of number which next to each other,so
slope=42-18/20-8= 24/12=2, so it's A