The graph shows the number of waffles sold by a canteen in a week.
- Which day showed a decrease in the number of waffles sold compared to the previous day? Give your answer in this format. (Eg Mon)
- Each waffle was sold at $8 each. How much money did the canteen earn from the total sales on Monday and Tuesday?
(a)
To find a decrease in a line graph, look for a decreasing slope.
The day that showed a decrease in the number of waffles sold compared to the previous day is Wednesday (Wed).
(b)
Number of waffles sold on Monday and Tuesday
= 21 + 29
= 50
Total sales on Monday and Tuesday
= 50 x 8
= $400
Answer(s): (a) Wed; (b) $400