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Grade 8 Math Chapter 2 Study Guide

Last updated about 1 year ago
20 questions
Lesson 2.1 Translations
2
Tell whether the figure is a translation of the red figure.
Enter "yes" or "no"

1. _______

2. _______
1

The vertices of a quadrilateral are E(1,2), V(1,4), A(4,4), N(4,2).

Draw the figure and its image after a translation 3 units left and 2 units down.

1

The vertices of a triangle are S(-1,-2), A(-2,2), and M(-3,0).

Draw the figure and its image after a translation 5 units right and 1 unit up.

1

Translate the triangle according to the directions.

Lesson 2.2: Reflections
3
Tell whether the blue figure is a reflection of the red figure.
Enter "yes" or "no"


8. _______

9. _______

10. _______
1

Draw the figure and its reflection over the x-axis (draw in BLUE) and the y-axis (draw in PINK).

1

Draw the figure and its reflection over the x-axis (draw in BLUE) and the y-axis (draw in PINK).

Lesson 2.3: Rotations
1
Tell whether the blue figure is a rotation of the red figure about the origin.

Enter "yes" or "no"


17. _______

18. _______
3
The vertices of a triangle are A(-4,2), B(-2,2), and C(-3,4).
Rotate the triangle 180 degrees about the origin.
Find the coordinates of the image.

A'_______
B'_______
C'_______
1

How many degrees of rotation does this appear to be?

1

The vertices of a triangle are R(1,2), A(2,2), and M(3,4).
Rotate the triangle 90 degrees counterclockwise about the origin.
Find the coordinates of the image.

1

With the given degree of rotation where would point P end up at?
180 degree Rotation

1

How many degrees of rotation does this appear to be?

2.4 Congruent Figures
1

Identify any congruent figures in the coordinate plane.
Shade in congruent figures in the same color.

1

Are these figures congruent or similar?

2.5-2.6: Dilations & Similar Figures
1
Tell whether the blue figure is a dilation of the red figure.
Enter "yes" or "no"



28. _______

29. _______
2
The vertices of a triangle are B(-3,-2), E(-3,0), and N(0,0).
Draw the figure and its image after a dilation with scale factor k = 4.

Identify the type of dilation (enlargement or reduction): _______
2
The vertices of a quadrilateral are J(4,10), U(10,6), A(6,6)and N(2,2).
Draw the figure and its image after a dilation with scale factor k = 0.5.



Identify the type of dilation (enlargement or reduction): _______
2
The blue figure is a dilation of the red figure.


Identify the type of dilation: _______
Find the Scale Factor(k): _______
1

Are these two figures similar?