Katie and Lukas write equations showing the proportional relationship between the number of ants, a, and the number of ant legs Katie writes a=6•1 and Lukas writes a=1/6•1

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.

6(2x + 5y)6 (2x) = 12x6 (5y) = 30y12x + 30y