ASAP HELP 20 POINTS 1. Use f(x) = x2 + 4x − 12 for the following:

a. Does the graph of our function open upward or downward? (5 pts)
b. Identify the coordinates for the vertex. (5 pts)
c. Identify the x-intercepts. (5 pts)
d. Identify the y-intercept. (5 pts)
e. Does the graph have a maximum or minimum? (5 pts)

2. The table models how the population of a city has changed over time. What does the y-intercept represent? (5 pts)

Years since 1985 Population
0 122,000
5 119,000
10 118,000
15 119,000
20 122,000
25 127,000
30 134,000
35 143,000
40 154,000