8th Grade Semester Review

Between which two integers does the value of $\sqrt{50}$ lie?

• 7 and 8

• 8 and 9

• 6 and 7

• 9 and 10

Mary wrote the number $2.3\times10^3$  in standard form. Which number did she write?

• 2,300

• 230

• 23

• 23,000

The lengths in centimeters of four line segments are shown below.
 $3.1,\ 3.4,\ 3\ \frac{1}{5},\ 4.2$  
Which list shows the lengths in order from least to greatest?

•  $3.1,\ 3\ \frac{1}{5},\ 3.5,\ 4.2$  

•  $4.2,\ 3.5,\ 3\ \frac{1}{5},\ 3.1$  

•  $3.1,\ 3.5,\ 3\ \frac{1}{5},\ 4.2\$  

•  $3\ \frac{1}{5},\ 3.1,\ 3.5,\ 4.2$  

Which lettered point shows the position of  $\sqrt{20}$  on the number line?

• C

• A

• B

• D

Mariana rides her bicycle 5 miles per hour. Which graph represents this relationship?

• 
• 
• 
• 

What is the slope of the line described by the data in the table?

• 2

• 3

• 1

• -2

What is the y-intercept of the line graphed?

• -3

• -6

• 3

• 6

Which of the following tables represents a function?

• 
• 
• 
• 

Which equation shows the relationship in the table?

(Hint: y2 - y1 / x2 - x1)

• y = 3x

• y = x + 6

• y = x + 3

• y = 6x

Which of the following equations represents a proportional relationship?

• 
• 
• 
•