SOLUTION
Given the image in the question tab, the following are the solution steps to get the correct statement
Step 1: Test statement A using the line l on the graph
It can be seen on the graph that the high temperature which was plotted on the y axis was actually constant for the entire number of days passes hence the statement is not true.
Step 2: Test statement B using the line m on the graph
It can be seen on the graph that the high temperature which was plotted on the y axis that the high temperature in Memphis actually decreased steadily. Hence the statement is true.
Step 3: Test statement C using the line m and p on the graph
It can be seen on the graph that the high temperature in Phoenix was colder than the high temperature in Memphis by checking the y-coordinate of the two lines. Hence the statement is not true.
Step 4: Test statement D using the line n and p on the graph
It can be seen on the graph that the line n reached the maximum point on the y-axis faster than line p. This implies that the high temperature in New Orleans rose faster than the high temperature in Phoenix. Hence the statement is not true.
ANSWER:
The statement B is true
