Question

number of visitors
350
340
330
320
310
300
290
thursday friday saturday sunday monday tuesday day
(a) what was the least number of visitors in a day?
□ visitors
(b) when did the number of visitors have the greatest increase?
thursday to friday
friday to saturday
saturday to sunday
sunday to monday

Explanation:

Step1: Identify the lowest point on the graph

By observing the line - graph, we can see that the lowest number of visitors occurs on Tuesday. The value on Tuesday is 290.

Step2: Calculate the increase between each pair of days

Thursday to Friday: \(330 - 300=30\); Friday to Saturday: \(320 - 330=- 10\) (a decrease); Saturday to Sunday: \(310 - 320=-10\) (a decrease); Sunday to Monday: \(315 - 310 = 5\). The greatest increase is from Thursday to Friday.

Answer:

(a) 290
(b) Thursday to Friday