Here's the question you clicked on:
neluthenoodle
http://media.education2020.com/evresources/3108-01-07/mc001-1.jpg What is the rate change of the function?
They are basically asking you for the slope of the line. Pick two different points on the line, lets say (1,-1) and (2,-3) Now, to find the slope use formula (popularly know rise over run), rise is y axis and run is on the x axis. slope, m=(y2-y1)/(x2-x1) m=(-3--1)/(2-1) m=(-3+1)/(2-1) m=-2/1 m=-2
thanks once again :)