The number of cups of flour required m a cookie recipe is in
     The number of cups of flour required m a cookie recipe is in a linear proportional relationship with the number of batches of the recipe as shown in the graph  Determine and interpret the slope.  Interpret the unit rate and compare it to the slope  What does the point (0, 0) represent?  Kyle earned $100 for detailing 2 cars. The amount of  cars he detailed x are in a proportional linear relationship  Graph the equation on a coordinate plane.  Determine and interpret the slope. 
  
  Solution
Graph shows the line passes through (0,0) and (5, 15)
So, slope = (15 -0)/(5-0) = 3
So, euqtaion of line: y = mx
y = 3x
Slope =3 means that 3 cups of flour are required for 1 batch of cookies
Point (0,0) indicates whne no batches of cookies are produced , no flour is consumed

