A recent trend in advertising is viral advertising. The goal is to convince viewers to share an amusing advertisement by using social media. The table below shows the number of days n since the video was first shown and the number of viewers v(n

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.