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Algebra Prognosis Exam - 40 Questions

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Read the following passage and answer questions 1, 2, 3, 4, 5 & 6.
Lesson 1
Directions - Study this lesson then answer the exam questions that follow.
1. A short way of writing 4(4) (that is 4 times 4) is 42 . The exponent 2 shows that 4 occurs as a factor two times.
Thus, 42 = 4(4).

2. A short way of writing x(x)(x) is x3 . If x = 2, then x3 = 23 =2(2)(2) = 8.

3. The expression 3x2 means 3(x)(x). Notice that 3 occurs as a factor only one time, while x occurs as a factor two times. If x = 5, then 3x2 = 3(5)(5) = 75.
Question 1
1.

If y = 2, then y5 =

Question 2
2.

72 =

Question 3
3.

If w = 3, then w4 =

Question 4
4.

If d = 5, then d3 =

Question 5
5.

If w = 3, then 5w2 =

Question 6
6.

If x = 2 and y = 3, then x4y2 =

Read the following passage and answer questions 7, 8, 9, 10, 11 & 12.
Lesson 2
Directions - Study this lesson then answer the exam questions that follow.

1. If a girl earns x dollars a day, in 6 days she will earn 6 times x or 6x, dollars.

2. If a person loses 4 pounds per month for m months, then the total weight change will be -4m pounds.

3. If 20 dollars is the cost of 5 books, one book will cost 20/5, or 4 dollars. Likewise, if x dollars is the cost of v hats, then one hat costs x dollars divided by v, or v/x dollars.

4. If y is the number of years a woman has lived, how many months has she lived? Since there are 12 months in a year, the number of months in y years will be 12 times y or 12y.
Question 7
7.

A boy is y years old. His sister is five times as old. The sister's age is

Question 8
8.

If Cindy reads at a rate of w words per minute, then in 4 minutes she would read

Question 9
9.

Choose the correct way of writing this sentence: A number c multiplied by itself is less than 35.

Question 10
10.

Susan collects d dollars from each of 20 customers on her paper route. She will collect a total of

Question 11
11.

Each year for five years in a row on the same day, John measured the height of a tree. During this time, it grew x inches per year. How much did it grow?

Question 12
12.

An egg carton has r rows and x eggs in each row. If 8 eggs are broken, how many unbroken eggs are in the carton?

Read the following passage and answer questions 13, 14, 15, 16, 17 & 18
Lesson 3
Directions - Study this lesson then answer the exam questions that follow.

1. The symbol f(x) means "function of x". In this lesson, f(x) = 2x + 1.

2. When a value of x is given, that value is substituted into the expression for f(x). Then the expression is simplified if possible.
Examples:
If x = 3, then f(x) = 2(3) + 1
= 6 + 1
= 7

If x = 5, then f(x) = 2(5) + 1
= 10 + 1
= 11

If x = a, then f(x) = 2(a) + 1
= 2a + 1
Question 13
13.

f(x) = 2x + 1 and x = 6, then f(6) =

Question 14
14.

If f(x) = 2x + 1 and x = 10, then f(10) =

Question 15
15.

If f(x) = 2x + 1 and x = 2, then f(2) =

Question 16
16.

If f(x) = 2x + 1 and x = 0, then f(0) =

Question 17
17.

If f(x) = 2x + 1 and x = (3 - 1)2 , then f((3 - 1)2 ) =

Question 18
18.

If f(x) = 2x + 1 and x = g, then f(g) =

Read the following passage and answer questions 19, 20, 21, 22, 23 & 24.
Lesson 4
Directions - Study this lesson then answer the exam questions that follow.

1. There is a certain order of operations in mathematics. For example, in the expression 3 + 2(4) the product of 2(4) must be done first, then that product should be added to 3. Multiplication is done before either addition or subtraction. Thus, 3 + 2(4) = 2 + 8 = 10.

2. In the expression 14/2 - 1, the quotient 14/2 must be found first. Then the 1 is subtracted from that quotient. Division is done before either addition or subtraction. Thus, 14/2 - 1 = 7 - 1 = 6.

3. If x = 5 and y = 3, then what is the value of 2x2 - 4y? Recall from lesson 1 that 2x2 - 4y means 2*x*x - 4*y. Thus, 2x2 - 4y = 2*5*5 - 4*3 = 50 - 12 = 38.

Note: The general rule is first to multiply or divide and then add or subtract. However, if some terms are enclosed in parentheses, then we calculate within the parenthesis first.
Example:

(1 + 5)3 = 6*3 = 18
Question 19
19.

If x = 5, then 3(x + 1) =

Question 20
20.

If w = 3, then 2 + w2 =

Question 21
21.

52 - 3*4 =

Question 22
22.

6 + 20/2 - 1 =

Question 23
23.

4 - 1 + 3 =

Question 24
24.

If x = 4 and y = 7, then 3x2 + 2y =

Read the following passage and answer questions 25, 26, 27 & 28.
Lesson 5
Directions - Study this lesson then answer the exam questions that follow.


1. The value of n! can be represented by the following equation; Notice that the factors start with n and go all the way down to 1.

n! = n(n - 1)(n - 2) . . .(2)(1)

Examples:

3! = (3)(2)(1) = 6

5! = (5)(4)(3)(2)(1) = 120


2. Suppose Jim, John and Jerry run a race. One of them will win, one will come in second place and one will come in last. There are six possible ways in which the three runners could finish the race.

Solution: There are three persons that could finish first, two that could finish second and only one that could finish last. Therefore, (3)(2)(1) = 6 ways or without multiplying the answer could be written 3!
Question 25
25.

4! =

Question 26
26.

(3!)(3!) =

Question 27
27.

(8 - 5)! =

Question 28
28.

3(4!) =

Question 29
29.

Directions: Do not take the time to multiply out the answer. Use the factorial or exponent symbols to express your answer.
Twelve athletes run the 100m dash. If there are no ties, how many possible rank orders are there in which the 12 athletes could place?

Question 30
30.

Directions: Do not take the time to multiply out the answer. Use the factorial or exponent symbols to express your answer.
George knows that a 5 digit personal identification number is used as his password to log into the school computer network, but he cannot remember his number. If he uses a systematic trial and error method to find the correct number, what is the largest number of trials he might have to make?

Question 31
31.

What is the sum of -3 and +1?

Question 32
32.

A class of 25 students consists of x girls and y boys. What shows the relationship between x and y?

Question 33
33.

In which quadrant does the point (-1, -3) lie?

Question 34
34.

If x = 5 and y = 2, then x2y =

Question 35
35.

(+4) + (-3) + (+5) + (-8) + (-6) =

Question 36
36.

If -5 + w = 20, then w =

Question 37
37.

The area of a rectangle is 144 square inches. Its width is 9 inches. What is its length?

Question 38
38.

If x = 2 and f(x) = 3x - 1, then f(2) =

Question 39
39.

If x - (-3) = 10, then x =

Question 40
40.

Use the table above to answer this question:
If C = -2, then Z =