Slope Similar Triangles

Triangle ADB and triangle BEC are similar right triangles. Which proportion can be used to show that the slope of AB is equal to the slope of BC?

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CCSS.8.EE.B.6

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CCSS.HSG.GPE.B.7

Which proportion could be used to show the slope of line VX is equal to the slope of line XZ?

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8.4A

• The slope of line XZ is the negative reciprocal of the slope of line CA because the triangles are flipped.

• The slope of line XZ is the same as the slope of line CA because the ratios of the corresponding sides of the triangles are equivalent.

• The is no relationship between the slope of line XZ and the slope of line CA.

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CCSS.8.EE.B.6

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CCSS.HSG.CO.C.11

Triangle ABC and triangle DEF...

• are different sizes,

  so their slopes are different.

• are on the same line,

  so they have the same slope.

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CCSS.8.EE.B.6

Identify the slope (CA) of triangle ABC.

• 1/3

• 3

• -3

• -1/3

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CCSS.8.EE.B.6

Which statement is not true?

• A and B

• D only

• C only

• A, B and D

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CCSS.8.EE.B.6

Triangle MNP and JKL are similar right triangles. Between which pairs of points are the slopes the same? Choose all that apply.

• N and P; K and J

• M and P; J and L

• M and N; K and L

• N and P; J and L

Tags

CCSS.8.EE.B.6

Identify the slope of the hypotenuse of triangle DEF.

• 1

• -1

• 3

• -3

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CCSS.8.EE.B.6