Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.

 1.  Select the number sequence that is represented by the following scatter
plot.
{DIAGRAM: Scatter plot  similar to grid in manuscript
for question 5 in Practising Section for lesson 4.5. Term number is label for horizontal axis.
Term value is label for vertical axis. The only points to be plotted are (1,0)
(2,2) and (3, 4) }
a.  2, 4, 6, ...  c.  4, 6, 8, ...  b.  0, 2, 4,
...  d.  1, 2, 3,
...     

 2.  Select the algebraic expression that corresponds to the scatter plot, where x is the
term number.
{DIAGRAM: Scatter plot  similar to grid in manuscript
for question 5 in Practising Section for lesson 4.5. Term number is label for horizontal axis.
Term value is label for vertical axis. Have the points (1,2) (2, 4) and (3, 6) plotted
on grid, with dotted line drawn through the points.}

 3.  Select the algebraic expression that corresponds to the scatter plot, where x is the
term number.
{DIAGRAM: Scatter plot  similar to grid in manuscript
for question 5 in Practising Section for lesson 4.5. Term number is label for horizontal axis.
Term value is label for vertical axis. Have the points (1,0) (2, 2) and (3, 4) plotted
on grid, with dotted line drawn through the points.} a.  2x  c.  2x 
2  b.  2x +
2  d.  x 
1     

 4.  Select the scatter plot which corresponds to the algebraic expression 2x +
2
{DIAGRAM: Scatter plot  similar to grid in manuscript for question 5
in Practising Section for lesson 4.5. Term number is label for horizontal axis. Term
value is label for vertical axis. There should be three dotted lines drawn, labeled
A, B and C.
Line A contains points (1,4), (2,6) and
(3,8)
Line B contains points (1,2), (2, 4) and (3,
6)
Line C contains the points (1,0), (2,2) and (3, 4) }

 5.  A
small wading pool contains 1000L of water. The pool drains at a constant rate. It takes
20 minutes to drain the pool. Draw a scatter plot to represent the relationship between the
volume of water remaining in the pool and the time in minutes.
After how many minutes is there 200L of water remaining in the
pool?
a.  15
minutes  c.  160
minutes  b.  16 minutes  d.  24 minutes     

 6.  For
the wading pool problem from question 5, determine the algebraic expression to describe the volume of
water remaining in the pool, where t is the time in minutes
a.  1000 
20t  c.  50t  b.  1000  50t  d.  1000 + 50t     

 7.  Draw
a scatter plot for the following sequence, where the horizontal axis represents the term number, and
the vertical axis represents the term value.
4, 7, 10, 13,
...
Use the scatter
plot to determine which term has a value of 25.
a.  term
7  c.  term
8  b.  term
6  d.  term
9     

 8.  Use
the scatter plot from Question 7 to determine the algebraic expression that corresponds to the
scatter plot.
a.  3x  c.  3x 
1  b.  3x +
1  d.  2x +
1     

 9.  For
the summer holidays, Susan cuts grass for $15.00 for each yard, regardless of the size of the
yard. Draw a scatter plot to represent the relationship between the number of yards she cuts,
and the money she makes.
Using the
scatter plot, determine how many yards Susan must cut to make $200.

 10.  For
the yard problem stated in Question 9, write an algebraic expression that corresponds to the scatter
plot, where n represents the number of yards.
a.  15n  c.  n + 15  b.  200n  d.  200 
15n     
