Name:    Try It Out -- Chapter 4, Lesson 5

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.}
 a. 2 c. x + 2 b. x + 1 d. 2x

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) }
 a. A c. C b. B

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.
 a. 13 c. 11 b. 12 d. 14

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