Similar Triangles and Slope

Identify the slope of EF in triangle DEF.

• 1

• -1

• 3

• -3

Identify the slope (CA) of triangle ABC.

• 1/3

• 3

• -3

• -1/3

Triangles ABC and DEF are similar. The slope of triangle ABC is...

• 1 which is the same as the slope of triangle DEF.

• 3/4 which is the slope of hypotenuse of triangle DEF.

• 4/3 which is the slope of triangle DEF.

• -1 which is the same as the slope of triangle DEF.

• 2/3

• 3/4

• 3/2

• 1/3

find the slope

• 3/2
• -3/2
• (-0,-3)
• none of the above

Identify the slope of the black line. You can use the blue slope triangles to help you.

What is the slope of the line graphed below? Simplify your answer. Be careful of the scale on the y-axis!

• 30/3 = 10/1 = 10

• 3/30 = 1/10

• 3/3 = 1

Which of the following is true about the triangles shown on the graph?

• The slope of the smaller triangle is smaller than the slope of the larger triangle.

• The slope of the larger triangle is larger than the slope of the smaller triangle.

• The triangles are congruent. Congruent: same size, same shape.

• The slopes of the two triangles are the same.

Are the triangles drawn along the line similar? Remember: Similar: same shape, different size.

• yes

• no

Find the slope of the given graph.

• 2/3

• -2/3

• 3/2

• -3/2