1. What is the x-coordinate of the vertex of the quadratic function $f(x) = 2x^2 + 8x + 1$?
2. Which type of function is characterized by having a constant, non-zero rate of change over its entire domain?
3. The vertex of the function $f(x) = |x + 7| + 1$ is at the point $(h, k)$. What is the value of $h$? ___
4. The population of a town grew from 7,000 people in 1990 to 16,600 in 2002. What was the town's average rate of growth in people per year? ___
5. Corey used 16 gallons of gasoline on a 512-mile trip and 13 gallons on a 429-mile trip. On which trip did he get better fuel economy (miles per gallon)?
6. A graph shows the cumulative sea level rise from melting glaciers was 0 mm in 1960 and 10 mm in 2003. What was the total change in sea level in mm from 1960 to 2003? ___
7. The population of a town grew from 7,000 people in 1990 to 16,600 in 2002. What was the town's average rate of growth in people per year? The average rate of growth was ___ people per year.
8. Naismith's Rule states travel time is 1 hour per 3 miles horizontally and 1 hour per 2000 feet of ascent. One foot of ascent is equivalent in time to how many feet of horizontal travel? Round to one decimal place. ___