8th Grade Exposure before Testing

You need your notebooks, a pencil, and a calculator

Take notes.

Dilations

Dilations will enlarge or reduce your image on the coordinate plane. 

Multiple Choice

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Dilation

Multiple Choice

A slide is also called a _________.

• Translation
• Reflection
• Rotation
• Dilation

Multiple Choice

A flip is also called a _________.

• Translation

• Reflection

• Rotation

• Dilation

Multiple Choice

Describe the Transformation

• Translation
• Reflection
• Rotation
• Dilation

Multiple Choice

What is this picture an example of?

• Reflection

• Translation

• Rotation

• Dilation

Multiple Choice

Name the transformation.

• Translation
• Reflection
• Rotation
• Dilation

Multiple Choice

Identify the transformation.

• Reflection across y axis
• Reflection across x-axis
• 180 Rotation
• Translation 2 units down

Multiple Choice

Determine how to translate triangle ABC to triangle A'B'C'.

• (x-2, y+5)
• (x+2, y-9)
• (x-2, y+9)
• (x-9, y+2)

Multiple Choice

What transformation is happening?
(x, y) ----> (x + 2, y - 3) 

• slide up 2, left 3
• slide right 2, up 3
• slide right 2, down 3
• slide left 3, right 2

Multiple Choice

Dilate the figure by a scale factor of 3. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)

• A'(9,9) B'(18,18) C'(27,9)
• A'(6,6) B'(9,9) C'(12,6)
• A'(0,0) B'(3,3) C'(6,0)
• A'(1,1) B'(2,2) C'(3,1)

Multiple Choice

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d

Scatter Plots

Bivariate data consist of two variables or two numerical observations. A scatter plot is a graph that shows the relationship between bivariate data. The data is graphed as ordered pairs on the coordinate plane. One variable or value does not necessarily depend on the other variable or value.

​

​Association/Pattern

Multiple Choice

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

Multiple Choice

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes
• No

Multiple Choice

Which scatter plot shows no relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Multiple Choice

Which scatter plot show a positive relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Multiple Choice

Make a prediction for a resting heart rate after 6 hours of exercise a week.

• 6
• 50
• 55
• 59

Multiple Choice

Which scatter plot shows a negative relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Multiple Choice

Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true?

• There is a negative relationship between height and weight

• There is a positive relationship between height and weight

• There is a constant relationship between height and weight

• There is no relationship between height and weight

Multiple Choice

In a scatterplot, an outlier...

• ...is when you lie down outside

• ...is a puppet with a long nose named Pinocchio
• ...is a point that is far outside the main cluster of points/ordered pairs
• ...is a point in the middle of the rest of the data

Multiple Choice

Identify any outliers.

• Outlier at x = 18

• Outlier at x = 12

• Outlier at x = 6

• There aren't any outliers in this graph.

How is Volume calculated?

Volume is calculated by multiplying three different dimensions which are: Length, Width, and Height.

Because we are multiplying three different dimensions, the unit measurement will be raised to the third power or CUBED.

Formula for Volume of a Cube

The formula for Volume of a Cube is: V = L x W x H

Example

Use the following measures of a cube:

L = 6 mm

W = 3 mm

H = 10 mm

If we are to find the volume of this cube we would simply multiply 6 x 3 x 10 to get the answer. The answer would be 180 mm³

Multiple Choice

What is the volume of a cube with the following dimensions: L = 5mm, W=3mm, H = 4mm

• 60 mm²

• 60 mm³

• 72 mm³

Multiple Choice

What is the volume of a cube with the following dimensions: L=10ft, W=10ft, W=10ft

• 100 ft^3

• 1000 ft³

• 1000 ft²

Cylinders

Example:

Multiple Choice

Determine the volume of the cylinder.

• 1,526 ft³

• 3,456 ft³

• 2,234.5 ft³

• 1,293.4 ft³

Multiple Choice

Determine the volume of the cylinder.

• 54,259.2 ft³

• 55,456 in³

• 55,456 ft³

• 54,259 ft²

Cones

Example:

Multiple Choice

What is the volume of the cone? Leave your answer in terms of  $$\pi$$  

• $$36\pi\ in^2$$  
  

• $$54\pi\ in^3$$  
  

• $$18\pi\ in^3$$  
  

Multiple Choice

Find the volume of the cone. Round your answers to the nearest tenth.

• 320.4 in³

• 314.2 in³

• 942.5 in³

• 267.4 in³

Spheres

Example:

Multiple Choice

Find the volume of the given sphere.

• 1,563.5 cubic in.

• 1,325.5 cubic in.

• 1,129.9 cubic in.

• 1,819.6 cubic in.

Multiple Choice

Find the volume. Round to the nearest tenth.

• 5575.3 cm³

• 506.8 cm³

• 126.65 cm³

• 1393.11 cm³

Multiple Choice

Find the volume of the given sphere. Leave your answer in terms of  $$\pi$$  

• $$\frac{256\pi}{3}mm^3$$  
  

• $$384\pi\ mm^2$$  
  

• $$\frac{2048\pi}{3}\ mm^3$$  
  

• $$2,144.7\pi\ mm^3$$  
  

What is a transversal?

It is a line that intersects at least two other lines.

This is an example of an transversal intersecting two lines.

Corresponding Angles

Corresponding angles are angle that are in the same location but in different intersections.

Alternate Interior Angles

Alternate Exterior Angles

Remember

Multiple Choice

Name the corresponding angle to angle 4.

• angle 8
• angle 6
• angle 2
• angle 5

Multiple Choice

Name the alternate interior angle to angle 3.

• 4
• 5
• 6
• 8

Multiple Choice

A line that passes through 2 or more lines is called a ______________.

• transitive
• passer through line
• transversal
• bisector

Multiple Choice

Angle 1 = 27^o
Find the measure of angle 4

• 27^o
• 153^o
• 63^o
• 90^o

Multiple Choice

What is the value of y?

• 29
• 119
• 58

Multiple Choice

Find D

• ∠D=116°
• ∠D=64°
• ∠D=180°
• ∠D=26°

Multiple Choice

Find the value of x. 

• x = 133
• x = 47

Multiple Choice

Identify the correct statement.

• ∠B=82°
• ∠B=98°
• ∠B=180°
• ∠B=8°

Multiple Choice

Are the measures of angle 2 and 7....

• the same

• add up to 180 degrees

Multiple Choice

Are the measures of angle 2 and 4....

• the same

• add up to 180 degrees

Fill in the Blanks

Fill in the Blanks

Degrees in a Triangle

• Every triangle has three angles that have a sum of 180 degrees

Multiple Choice

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Multiple Choice

Find the missing value of x.

• x = 118^o

• x = 59^o

• x = 69^o

• x = 108^o

Finding x

Remember the sum of the remote interior angles equals the exterior angle.

So........

63 + 86 = x

149 ^o = x

Multiple Choice

What is the measure of angle b?

• 36^o
• 56^o
• 63^o
• 117^o

Multiple Choice

Select the correct answer

• A

• B

• C

• D

Multiple Choice

Select the correct answer.

• A

• B

• C

• D

Multiple Choice

Select the correct answer.

• A

• B

• C

• D

Multiple Choice

Select the correct answer.

• A

• B

• C

• D