2.1 Review Worksheet, Part 2
2.1.4 Writing Linear Functions Write the equation of each line in slope-intercept form. 1. 2.
3.
4
4
2
2
2
–4
–2
2
4
–2
–4
–2
2
4
–4
–2
2
4
–2
–2
–4
Find the slope of each line. 4.
AB through A ( − 1, 3) and B (1, − 4)
5. line
x y
0 1 2 3
1 3
1 3
5 3
1
−
Write the equation of each line in slope-intercept form. 6. passing through (3, 11) with slope 7.
7 3
x y
10 15 20 25 –2 –7 –12 –17
8. The table shows the number of times a firefly flashes per minute at various temperatures. a. Express the flashing rate f ( T ) as a function of temperature T .
Firefly Flashing Rate Temperature (ºF) Flashes per Minute 84 16 93 20 66 8
b. Graph the relationship between temperature and the number of flashes per minute.
c. At what temperature would a firefly flash 25 times per minute?
d. How many times per minute would a firefly flash at 35ºF. Is this reasonable?
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