2.1.4 Writing Linear Functions − Practice
2. Identify the equation of the line in slope- intercept form.
1. Identify the equation of the line in slope- intercept form.
3. Express the quantity of water flowing into a tank as a linear function of time. Then identify the quantity of water in the tank after 50 minutes. Time (min) Amount of water (gal) 10 207 20 226 30 245
4. Express the cost of hiring a taxi as a linear function of the distance traveled. Then identify the cost of hiring a taxi to travel a distance of 34 miles.
Distance (miles)
Cost($)
6
15 21 36
10 20
5. Identify the equation of a line in slope- intercept form that is parallel to y = 2.5 x + 5 and passes through (2, 3).
6. Identify the equation of a line in slope- intercept form that is perpendicular to = − y x 4 and passes through (6, − 2).
2 3
100
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