Ihave a question about this program what are the gold crowns and how do you earn them?

Gold crowns are earned by answering peoples questions and them giving you 'The brainliest answer'. There is no solid way of getting gold crowns as they are awarded by the person presenting a question. The best advice I can give you for getting them is by providing the best and most explained and well thought out correct answer to peoples questions. 

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.