Understanding and using slopes

Tags

CCSS.8.EE.B.6

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet
• 72 feet
• 36 feet

Tags

CCSS.8.EE.B.6

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

Which value of x will show that lines l and m are parallel?

• 20
• 22
• 24
• 25

Tags

CCSS.8.EE.B.6

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

There is a height-to-shadow ratio. It is 40 : 30. Look to the image and try to find the height of the tallest person.

• 80 cm

• 78 cm

• 84 cm

• 82 cm

Tags

CCSS.8.EE.B.6

• -3

• 1

• -1

• 3

Tags

CCSS.8.EE.B.6

Are the following slopes parallel, perpendicular or neither?
 $m=-5\ \ and\ m=1$  

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

y = -2/3x + 2

y = 3/2x + 9

These lines are...

Parallel Lines: Same Slope

Perpendicular Lines: Negative Reciprocal Slopes (i.e. 2/3 and -3/2)

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6

Are the following slopes parallel, perpendicular or neither?
 $m=\frac{4}{7}\ \ and\ m=\frac{4}{7}$  

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.B.6