# Class Size

## Class Size

• Submitted By: lancehush
• Date Submitted: 12/11/2008 11:45 AM
• Category: Religion
• Words: 962
• Page: 4
• Views: 734

1 [pic]
Which expression correctly represents the area of the rectangle above?
A 10x
B 7(x + 3)
C (x + 3)(x + 7)
D 7 + (x + 3) + 7 + (x + 3)

2 What is the value of 2a2b + 5ab – 4
if a = –5 and b = 4?
F –304
G –144
H 3
J 96

3 What is the value of f(a + b,2b) ,
if a = 6 and b = 9?
A f(5,6)
B f(5,4)
C 3
D 15

4 In kilometers, the approximate distance to the earth’s horizon from a point h meters above the surface can be determined by evaluating the expression r(12h) . About how far is the apparent horizon to a person looking out to sea from the top of a cliff 250 meters above sea level?
F 18 km
G 55 km
H 110 km
J 190 km

5 This is a box-and-whisker plot of a set of scores.
[pic]
In which quartile would a score of 76 fit in this set?
A 1st
B 2nd
C 3rd
D 4th

6 (0, -3), (2, -2), (4, -1), (6, 0) …

These ordered pairs follow a pattern.
If (10, y) is in this pattern, what is the value of y?
F 1
G 2
H 3
J 4

7 Which of the following tables represents a function?
A [pic]
B [pic]
C [pic]
D [pic]

8[pic]
Using the function machine in the diagram, what is the output when 12 is the input?
F 7
G 8.5
H 19
J 29
9 [pic]
Which table most likely matches this graph?
A [pic]
B [pic]
C [pic]
D [pic]

10 What is the domain of the set of ordered pairs
{(- 5, - 4), (- 4, 4), (2, 3), (4, 5)}?
F {- 5, - 4, 2, 4}
G {- 4, 3, 4, 5}
H {- 5, - 4, 4, 5}
J {- 5, 2, 3, 4}

11 [pic]
Using the same relationship between x and y as in the table, what is the value of y when x is 8?
A –1
B 2
C 3
D 5

12 [pic]
What is the domain of the function shown above?
F All integers
G All real numbers
H All natural numbers
J All whole number

13 What is the range of the function
f(x) = 2x + 3 when the domain is
{–4, –2, 3}?
A {7, 9, 11}
B {–5, –1, 9}
C {–8, –4, 6}
D {1, 3, 8}
14 Which of the following is not a graph of a function?
F [pic]
G [pic]
H [pic]
J [pic]

15 a varies directly as b and a = 15...