Pre-Algebra

Question 1

What is an interger?

Answer 1

-1 to negative infinity (whole numbers only)

Question 2

What is the horizontal axis on a coordinated place called?

Answer 2

x axis

Question 3

What is the vertical axis on a coordinated place called?

Answer 3

y- axis

Question 4

When plotting a point on the coordinated plane where does the x and y go in an ordered pair? (___,___)

Answer 4

(x,y)

Question 5

There are 4 quadrants for the coordinated plane which quadrant are all the x ANY y values positive?

Answer 5

I

Question 6

There are 4 quadrants for the coordinated plane which quadrant are all the x ANY y values negative?

Answer 6

III

Question 7

There are 4 quadrants for the coordinated plane. Which quadrant are all the x values positive and the y values negative?

Answer 7

IV

Question 8

There are 4 quadrants for the coordinated plane. Which quadrant are all the y values positive and the x values negative?

Answer 8

II

Question 9

How do you convert a fraction into a decimal?

Answer 9

Divide the denominator into the numerator.

Question 10

How do you convert a fraction into a percent?

Answer 10

Write a proportional statement. 1/2=x/100

Question 11

How do you convert a decimal into a percent?

Answer 11

Multiply the decimal by 100.

Question 12

What is a proportional statement?

Answer 12

Setting one fraction (proportion) equal to another. Example 1/2=100/200=250/500

Question 13

What are the alphabetic symbols that are used in algebraic equations called? Example 2x+3=13

Answer 13

Variable

Question 14

How do you find the perimeter of a rectangle?

Answer 14

2L+2W or L+L+W+W

Question 15

How do you find the area of a square?

Answer 15

LxW

Question 16

In line equation y=mx+b. What does the b represent?

Answer 16

y intercept

Question 17

In line equation y=mx+b. What does the y represent?

Answer 17

The y value of an ordered piar

Question 18

In line equation y=mx+b. What does the m represent?

Answer 18

slope (rise over run)

Question 19

In line equation y=mx+b. What does the x represent?

Answer 19

The x value of an ordered pait

Question 20

Given an equation of a line in the form y=mx+b how could you solve for m?

Answer 20

Divide the coefficient of y into mx AND b.

Question 21

What is a coefficient in an equation?

Answer 21

The number before a variable i.e. 3x 3 is the coefficient 25z 25 is the coefficient.

Question 22

Given an equation of a line in the form y=mx+b how could you solve for b?

Answer 22

Solve for m (the slope first) then plug that in to solve for b

Question 23

What is the order of operations when solving equations?

Answer 23

PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction

Question 24

How do you add or subtract fractions with unlike denominators?

Answer 24

1. Find a common denominator then solve.

Question 25

How do you multiply fractions?

Answer 25

Multiply the numerators together then the denominators. Reduce if necessary.

Question 26

How do you divide fractions?

Answer 26

Flip and multiply. Flip one of the fractions i.e. 1/2 becomes 2/1 then multiply. Reduce if necessary.

Question 27

What are the 3 types of fractions?

Answer 27

Improper, Mixed, and standard

Question 28

How do you convert a percent into a decimal?

Answer 28

Move the decimal point over 2 place values to the left. 25%=.25

Question 29

What are Whole numbers?

Answer 29

Non-negative positive numbers 4,12,859

Question 30

What are Natural numbers?

Answer 30

1 to infinity

Question 31

What are rational numbers?

Answer 31

Fractions (terminating)

Question 32

How do you convert a decimal to a fraction?

Answer 32

1. Write the decimal as the numerator and 1 as the denominator. 2. Move the decimal point over for the numerator to make it a whole number. 3. Move the same number of place values in the denominator. Example 0.50 ---> 0.50/1 I have to move the decimal 2 place values to the right to make 0.50 a whole number of 50., so I move the decimal place to values to the right for the denominator 1.00 to 100. Now I Have 50/100=1/2

Question 33

How do you convert a percent to a fraction?

Answer 33

Set the fraction over 100 and reduce if necessary Example 50% ---> 50/100=1/2