00:02
Next time, i'm going to help you with some of these problems, but next time, just submit one problem per submittal because we can't possibly answer like this is a lot of work.
00:15
So let's take a look at lisa, problem two.
00:17
So one saturday, fred decided to take an all -day biking trip.
00:22
The table below indicates how far he traveled each hour of the day.
00:26
Prepare a graph to illustrate the data given for the bicycle trip so the independent variable is going to be the time that that's going to be your x and your total distance is going to be your y and so time x always comes before y so that's how i know that it's the independent variable so um how would you expect the graph to look if the data were available from 5 p .m to 6 p .m.
00:56
You could do every 10 minutes you could plot points identify the factors that might cause a change in the shape of the graph so for the time you instead of doing the time you could do the first hour second hour and so on and so forth use your graph to estimate the total distance so i'm not going to make the graph for this there certainly isn't enough room but you can definitely make the graph you could do so this is your starting point 8 a .m.
01:41
And then 9 a .m.
01:42
Is the first hour, second hour, third hour, fourth, fifth, six, seven, eight okay? instead of using the time here, i mean you could and then that way you can plot your points.
01:56
Use your graph to estimate the total distance traveled by 1030 a .m.
02:01
So by 10 .30 a .m., it's going to be between 23 and 33.
02:08
So you should get 23 plus 33.
02:12
That is 56 divided by 2.
02:15
So 56 divided by 2.
02:18
It should be approximately at 28.
02:22
So it should be at 2 .5 and 28.
02:27
That's what, that's if you use the numbers.
02:32
Instead of the times or you could say 1030 if you want to use the times comma 28 okay um can you be can you be absolutely certain of this value how far did fred travel in the first hour of the trip so first hour was 12 kilometers okay that's for the first hour of the trip how far did fred travel on the last hour of the trip.
03:03
That's 68 kilometers.
03:08
Suggest a possible explanation for the difference.
03:12
So if you want to just do like how long he traveled, so you could say instead of doing the total of the 68 kilometers, you could say eight, i'm not eight, five kilometers because because 63 minus 68 is 5 kilometers...