Perpendicular Slopes and Right Triangles

Is triangle ABC acute, right, or obtuse?

• right, the slope of AB is 4 and the slope of AC is -1/4, so they are perpendicular

• right, the slope of AC is -5/3 and the slope of BC is 5/3

• right, the slope of AC is -3/5 and the slope of BC is 5/3

• right, the slope of AB is 1/4 and the slope of AC is -4, so they are perpendicular

Tags

CCSS.8.EE.B.6

Look at the sides and angles of this triangle. Which type of triangle is pictured? Select two.

• Equilateral Triangle

• Isosceles Triangle

• Scalene Triangle

• Obtuse Triangle

• Right Triangle

Tags

CCSS.4.G.A.2

Lines cross or intersect to form a 90° angle and have opposite reciprocal slopes. 

• Perpendicular lines

• Parallel Lines

• Segment

• Point

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

The steepness of a line. Also known as rise over run.

• Distance

• Segment

• Midpoint

• Slope

Tags

CCSS.8.EE.B.5

If a line has a slope of 1/23 a line that is perpendicular has a slope of what?

• -23

• 23

• 1/23

• -1/23

Tags

CCSS.8.EE.B.6

What is the slope of a line that is perpendicular to the line show?

Tags

CCSS.8.EE.B.6

What is the slope of a line that is perpendicular to the line show?

Tags

CCSS.8.EE.B.6

Given the function y = 3x + 4, what is the slope of the line that is perpendicular to the function. Type only the slope in simplest form.

Mathematical Equivalence

ON

Tags

CCSS.8.EE.B.5

A line is perpendicular to    y = 2x - 7.
What is the slope of this line? 

• -2

• 1/2

• -1/2

• 2

Tags

CCSS.8.EE.B.6

Graph a line that goes through the point (-3, 4) and is perpendicular to  y = 3/2x + 6?