The maximum profit is the highest point on the curve at (3, 45), and since the y-value is the profit in hundreds of dollars, the maximum profit is $4500.
The shop is making a profit as long as the curve is above the x-axis, so this is over the given interval (0, 10).
The maximum profit is earned at x = 3, and the x-value is the money spent on advertising in hundreds of dollars, so this means that $300 was spent of advertising.
Answer:
all the possible values of y - x are 4 and 5
all possible values of x/y = 1
Answer:
for every 2 tables there are 10 chairs, so for 12 tables there are 60 chairs
