Question

Has anyone started working on the Portfolio for Unit 1 in Algebra 2b? I want to know what kind of graph to use. I just want to make sure I'm doing it right.

Answer 1

What is the Portfolio for Unit 1 in Algebra 2b?

Answer 2

This is the part I'm working on now.
Activity 1: Graphing
Scuba divers must learn about pressure under water. At the water’s surface,
air exerts 1 atmosphere (atm) of pressure. Under water, the pressure increases.
Th e pressure P (atm) varies with depth d (ft) according to the equation P 5 d
33 1 1.
Boyle’s law states that the volume V of air varies inversely with the pressure P.
If you hold your breath, the volume of air in your lungs increases as you ascend.
If you have 4 qt of air in your lungs at a depth of 66 ft (P 5 3 atm), the
air will expand to 6 qt when you reach 33 ft, where P 5 2 atm.
• Using the data in the example above, make a table and graph to
show how the volume of air in your lungs varies with depth.
• Make a table and graph to show how the volume of air in your
lungs varies with pressure.

Answer 3

I made the data tables aready

Answer 4

So to me this sounds like it should be a 2D graph on the XY-plane. I believe you need to make two graphs. The first graph will show how volume of air in lungs varies with depth. SO, make the x-axis depth, going from say 0 to 100 feet, and then mark your depth x-coordinates. Make the y-axis volume say from 0qt to 10qt (whatever, just make sure you can plot your points) and mark your y-coordinates, which will be volume. Now, plot your points. You can do the same for the 2nd graph, but instead, this time, make the x-axis pressure.

Answer 5

I think both graphs should slope down to the right. As pressure increases (x-axis), volumne decreases (y-axis). Also, as depth increases (x-axis), volume decreases (y-axis).

Answer 6

would the graph look kinda like this? This is just a random graph I found on google. but Is this the kind of graph you meant?