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Unformatted text preview: has slope m = 2 and P (2, −5) lies on the line, ﬁnd
the standard form of the equation of the line.
If P (−1, 6) and Q (5, 1) are two points that lie on a line, ﬁnd
the standard form of the equation of the line. Outline Three Forms of a Linear Equation Graphing Linear Equations The Point-Slope Form of a Line Applications An Application
A driver going down a straight highway is traveling 60 ft/s on
cruise control, when he begins accelerating at a rate of 5.2 ft/s2 .
The velocity of the car t seconds after he begins to accelerate is
v = t + 60.
1 Interpret the meaning of the slope and y -intercept in this
context. 2 Determine the velocity of the car after 9.4 seconds. 3 If the car is traveling at 100 ft/s, for how long did it
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