Asidewalk borders a rectangular play area. the play area measures 20 feet by 14 feet. the width of the sidewalk is 2 feet. what is the perimeter of the outside border of the sidewalk?

That is going to be the fromula of 20x14x2

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.