Gr 8 December Review
Describe the correlation.

 Negative correlation

 No correlation

 Positive correlation

Cars

sold

in

thousands

60
50
40
30
20
70
0

Based on the given scatter plot, during how

 many years from 1950 to 1956 did the

 number of cars sold exceed 45,000?

1
Year  ( 0 = 1950)
2
3
4
5
 3

 4

 7

 1

6
What is the slope of the line?
slope =

During peak growing season, a vine can grow

30 inches in 15 hours.  What is the growth rate

of the vine in inches per hour?

inches per hour

Seven pounds of candy cost $24.92.  Determine the

cost per pound.

$
Determine the 6th term in the sequence below:
-41, -29, -17, -5, . . .

I

n

c

h

e

s

16

12

20

8

4

0
1

Describe the rate of change

in inches per day.

Day
2
inches per day
3
4

Determine the 6th term in the sequence.

4, 16, 64, . . .

 4096

 256

 16384

 1024

Does this graph depict

a linear relationship?

 Yes

 No

Identify the equation that does not depict a

linear relationship.

 2x - 8y = 14

  y = 3x2 - 9

 y = -¾x + 2

 4x = y

y-intercept =
(
Identify the y-intercept.
,
)
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