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Variation

Variation

Variation(not

exhaustive)

In this lesson, you are going to learn how to compare distance-time graphs and equations.

y = 8x + 30

Maria installs carpet for $8 an hour plus a $30 installation fee.

x y

1 38

2 46

3 54

Distance-Time Representations

distance = rate x time

d = r x t / d = rt

Example: Biking at 10 miles an hour

xtime

ydist.

0 0

1 hr. 10 miles

2 hr. 20 miles

3 hr. 30 miles

Distance-Time Representations

d = 10tx

timey

dist.

0 0

1 hr. 10 miles

2 hr. 20 miles

3 hr. 30 miles

Three cars are traveling from New York City to Washington, DC. Each are represented below. Which car is driving at the fastest rate?

Hour Miles Driven

2 110

4 220

6 440

Miles = 65 x hours