3.2 Review Worksheet
3.2.1 Finding the Slope Given Two Points 1. Find the slope of the line that contains points ( − 9, − 5) and (6, − 5).
Each graph or table shows a linear relationship. Find the slope. 2. x y 1 18.5 2 22 3 25.5 4 29 3. –4 –2
y
4
(0, 2)
2
x
2
4
(4, –1)
–2
Find the slope of each line. Then tell what the slope represents. 4. Temperature Conversion 5.
Boiling Point of Water
y
206 208 210 212 214 ( 500, 212.9)
10
x
0
–40
–20
(5, –15)
(2500, 207.5)
–1000
1000 2000
–40
0
(–40, –40)
Altitude above sea level (ft)
Temperature (°F)
3.2.2 Slope-Intercept Form Write the equation of each line in slope-intercept form. 6. =− = y slope , -intercept 2
2 3
7. slope = 0, (6, − 8) is on the line
8. line through (5, 2) and ( − 2, 2)
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