Graph the line that represents a proportional relationship between d
dd and
t
tt with the property that an increase of
0.2
0.20, point, 2 units in
t
tt corresponds to an increase of
1.8
1.81, point, 8 units in
d
dd.
What is the unit rate of change of
d
dd with respect to
t
tt? (That is, a change of
1
11 unit in
t
tt will correspond to a change of how many units in
d
?
d?d, question mark)
The unit rate of change is

.
Graph the line.
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1
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d
d
t
t