Two friends argue over who brushes their teeth more often. Who is more likely to brush both morning and evening? Assume all events are independent.

Multiple choice answers in picture below

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.