• y  = 1/3x − 2
• y  = −3x + 8
• y = 3x - 10
• y = -1/3x + 1

• The center of dilation is (-10, 8).
• The triangles are congruent.
• The scale factor of the dilation is 2.5.
• The dilation is a reduction.

Which equation of a line is parallel to y = -1/2x + 7 and
perpendicular to the line
 y = 2x - 5?

• y = 2x + 3
• y = -2x + 3
• y = 1/2x + 3
• y = -1/2x + 3

Which of the theorems can be used to prove two lines are parallel?

• If two lines are cut by a transversal so that a pair of vertical angles are congruent, then the lines are parallel.
• If two lines are cut by a transversal so that a pair of same side interior angles are congruent, then the lines are parallel.
• If two lines are cut by a transversal so that a pair of corresponding angles are congruent, then the lines are parallel.
• If two lines are cut by a transversal so that a linear pair of angles are supplementary, then the lines are parallel.

This statement is false:
Dilations are rigid motions; the pre-image and image figures are congruent.
Which of the statements below is true?

• Dilatiions are not rigid motions; the pre-image and image figures are congruent.
• Dilations are rigid motions; the pre-image and image figures are similar.
• Dilations are not rigid motions; the pre-image and image figures are similar.
• None of these statements are true.

Find the equation of a line that passes through (4, 0) and is parallel to the line -x + 2y = 12. 

• y = 1/2x + 2
• y = 1/2x - 2
• y = -x + 2
• y = -2x -2

• 119 degrees
• 90 degrees
• 81 degrees
• 89 degrees

Tags

CCSS.7.G.B.5

• x = 109
• x = 55
• x = 71
• x = 81

• x = 54
• x = 72
• x = 36
• x = 46

• 60 degrees
• 63 degrees
• 65 degrees
• 68 degrees