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Timed Test For
Rates & proportional relationships
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Sample Problem
The unit rate of change of $y$ with respect to $x$ is the amount $y$ changes for a change of one unit in $x$. **Is the unit rate of change of $y$ with respect to $x$ less in the equation $y=6.5x$ or in the graph below?** [[☃ radio 1]] 
The unit rate of change of
y
y
y
with respect to
x
x
x
is the amount
y
y
y
changes for a change of one unit in
x
x
x
.
Is the unit rate of change of
y
y
y
with respect to
x
x
x
less in the equation
y
=
6.5
x
y=6.5x
y
=
6
.
5
x
or in the graph below?
Choose 1 answer:
Choose 1 answer:
A
The unit rate is less in the equation.
B
The unit rate is less in the graph.
C
The unit rates are the same.
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Duration
30 seconds
60 seconds (1 minute)
120 seconds (2 minutes)
180 seconds (3 minutes)
300 seconds (5 minutes)
