1. 8th grade math end of year review
Created by Educational Technology Network
8th grade math end of year review

2. Real Numbers
Exponents & Scientific Notations
Proportional Relationships
Nonproportional Relationships
Writing Linear Equations 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

3. Module 1 – 10 Points QUESTION: ANSWER:
Any number that can be written as a fraction is this type of number.
ANSWER:
rational number

4. Module 1 – 20 Points QUESTION: ANSWER:
This type of decimal has a fixed number of digits. Example is 0.5.
ANSWER:
Terminating decimal

5. Module 1 – 30 Points QUESTION: ANSWER:
This type of decimal has a repeating digit or digits. Example would be ….
ANSWER:
Repeating decimal

6. Module 1 – 40 Points QUESTION: ANSWER:
These numbers have integers as their square roots. Example would be 36.
ANSWER:
Perfect square

7. Module 1 – 50 Points QUESTION: ANSWER:
Rational and irrational numbers make up these types of numbers. Example would be √5
ANSWER:
Real numbers

8. Module 2 – 10 Points QUESTION: ANSWER:
Given answer in exponential form: 78 x 75 =
ANSWER:
713

9. Module 2 – 20 Points QUESTION: ANSWER:
Give answer in exponential form:
ANSWER: 62

10. Module 2 – 30 Points QUESTION: ANSWER:
8.4 x 104 is a number written in what form?
ANSWER:
Scientific Notation

11. Module 2 – 40 Points QUESTION: ANSWER:
Very small numbers written in scientific notation have _________ exponents.
ANSWER:
Negative

12. Module 2 – 50 Points QUESTION: ANSWER:
Write 4.5E-1 in standard notation
ANSWER:
0.45

13. Module 3 – 10 Points QUESTION: ANSWER:
A relationship between two quantities in which the ratio of one quantity to the other quantity is constant. Described by the equation y = kx.
ANSWER:
Proportional relationship

14. Module 3 – 20 Points QUESTION: ANSWER:
In the equation, y = kx, k is known as what?
ANSWER:
Constant of proportionality

15. Module 3 – 30 Points QUESTION: ANSWER:
The ratio of the amount of change in the dependent variable, or output, to the amount of change in the independent variable, or input
ANSWER:
Rate of change or slope

16. Module 3 – 40 Points QUESTION: ANSWER: m = y2 – y1
x2 – x2 is known as the __________.
ANSWER:
Slope formula

17. Module 3 – 50 Points QUESTION: ANSWER:
A rate in which the second quantity in the comparison is one unit. Example would be 55 m.p.h.
ANSWER:
Unit rate

18. Module 4 – 10 Points QUESTION: ANSWER:
An equation that forms a straight line when graphed
ANSWER:
Linear equation

19. Module 4 – 20 Points QUESTION: ANSWER:
The slope-intercept form of an equation is ___________
ANSWER:
y = mx + b

20. Module 4 – 30 Points QUESTION: ANSWER:
The _________________ is where a line crosses the y-axis and is represented by the letter b.
ANSWER:
y-intercept

21. Module 4 – 40 Points QUESTION: ANSWER:
To be proportional, a line must be straight and cross the y-axis at _____________.
ANSWER:
The origin or the point (0,0)

22. Module 4 – 50 Points QUESTION: ANSWER:
A line with a slope of zero is what kind of a line?
ANSWER:
Horizontal

23. Module 5 – 10 Points QUESTION: ANSWER:
If you are given two ordered pairs, you can find slope by using the __________________.
ANSWER:
Slope Formula

24. Module 5 – 20 Points QUESTION: ANSWER:
If you are given a graph, you can find the slope of a line by doing:
ANSWER:
rise (fall)
run right

25. Module 5 – 30 Points QUESTION: ANSWER:
Which variable in y = mx + b represents the unit rate?
ANSWER:
m; the slope can be described as a unit rate

26. Module 5 – 40 Points QUESTION: ANSWER:
What is meant by “bivariate data”?
ANSWER:
Set of data that is made up of two paired variables

27. Module 5 – 50 Points QUESTION: ANSWER: 3 15 9 45 21 105
Is the data in the
table linear?
Explain
ANSWER:
Yes, there is a constant rate of change (slope = 5)
Number of boxes
Weight (kilograms) 3 15 9 45 21
105