• Part A: Consider the data for your 20 cities. Create three scatter plots: One graphing the latitude against the average temperature, another graphing the longitude against the average hours of daylight, and a third comparing annual precipitation to distance to closest international airport.
• Part B:
• For each of the three graphs, find the line of best fit using technology. State the equation of the line, and its coefficient of determination. Describe the relationship in each of the three plots.
• Part C:
• Select four of your cities, and plot their longitude on the x-axis and their latitude on the y-axis. Draw line segments connecting the four points (4 lines forming the outside of a quadrilateral, and 2 diagonals). Find the equation of the line that forms each of the line segments, and the point of intersection of the quadrilateral's two diagonals. Show your work, and be sure to specify which points and lines you are describing.
• Checklist:
  • I have plotted points on a Cartesian plane.
  • I have found a line of best fit, and its coefficient of determination.
  • I have described a system of equations.
  • I have found the point of intersection of two lines.

Continent	City	Latitude	Longitude	Average temperature (Celsius)	Annual precipitation (mm)	Average hours of daylight per month	Distance to closest international airport (km)
North America	Guadalajara, Mexico	20.67	103.33	20.9	1,002	222.8	15.9
Africa	Cairo, Egypt	30.03	31.23	21.8	25	287.6	19.6
Asia	Beijing, China	39.9	116.38	13.1	543	208.3	25.9
Africa	Cape Town, South Africa	33.92	18.42	16.2	515	257.8	17.9
Europe	Tampere, Finland	61.48	23.75	4.4	598	153.3	12
Oceania	Wellington, New Zealand	41.28	174.77	12.7	1,250	171.5	4.6
North America	Whitehorse, Canada	60.72	135.05	0.1	262	152.3	1.3
Europe	Zagreb, Croatia	45.82	15.98	10.7	840	157.3	11.1
South America	Valencia, Venezuela	10.18	68.00	26	913	208.9	8.1
North America	Salt Lake City, USA	40.75	111.88	12.6	394	252.5	8.5
Europe	Patras, Greece	38.25	21.73	17.4	663	231.1	91.8
South America	Porto Velho, Brazil	8.75	63.90	25.6	2,255	165.7	5.8
Asia	Nagoya, Japan	35.18	136.9	16.2	1,579	178.4	38.2
Africa	Nairobi, Kenya	1.28	36.82	17.8	1,061	207.7	12.7
North America	Limn, Costa Rica	10	83.08	25.9	3,575	151.8	3.7
North America	Fredericton, Canada	45.95	66.63	5.8	1,094	164.3	13.6
Africa	Casablanca, Morocco	33.53	7.58	18.2	398	252.5	23.9
Asia	Chennai, India	13.08	80.27	29	1,383	237.4	14.4