8M: 5-3 QC (rate of change)
1.
Calculate the
rate of change
for the given
date table.
 1
 -4
 2
 4
x
2
4
6
-2
y
6
2
2.
 -6/1
 -1/6
  6/1
  1/6
What is the slope
of the given line
segment?
3.
Tell whether the slope of the line is 
positive, negative, zero or
undefined.
y
positive
negative
zero
undefined
x
4.
Tell whether the slope of the line is 
positive, negative, zero or
undefined.
y
positive
negative
zero
undefined
x
5.
Tell whether the slope
of the line is positive,
negative, zero or undefined.
y
positive
negative
zero
undefined
x
6.
Tell whether the slope 
of the line is positive,
negative, zero orundefined.
positive
negative
zero
undefined
y
x
7.
Find the rate of change in the number of votersat the local precinct between 8 A.M. until 10 A.M.
39 voters/hr
# voters
time
8 A.M.
78
78 voters/hr
10 A.M.
156
156 voters/hr
12 P.M.
234
2 P.M.
312
8.  
Slope and rate of change are ...
completely different concepts
opposites
never calculated the same way
the same concept
9.
What two words help us remember
how to calculate the rate of change
or the slope of a line?
back and forth
rise and run
together and apart
in and out
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
10.
*If the rate of change
is negative, put
the negative in
the numerator.
Find the rate of 
change for the graph.
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
11.
*If the rate of change is 
negative, put the negative
in the numerator.
Find the slope for the graph below.
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
12.
*If the rate of change is 
negative, put the negative
in the numerator.
Find the slope for the graph below.
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