Equation: 25=1.5x + 0.5y represents the profit of $25
x represents number of cookies
y represents the lemonade
Solution:
Plot a graph of number of lemonades (in the y-axis) against number of cookies (in the x-axis)
The equation of the straight line should be:
0.5y = -1.5x + 25
Divide through by 0.5 to get;
y = -3x + 50
The slope is -3 which means that three lemonades are used to produce one cookie.
