Using Similar Triangles to Describe the Steepness of a Line

In the expression 42mn + 27m - 1, what is the coefficient of mn?

• A) 42

• B) 27

• C) -1

• D) 0

Fill in the blank: The coefficient of a^2 in the expression -3a^2 + 18a is ____.

• -3

• 18

• 0

• 1

What does the equation y = mx represent?

• A) A linear relationship

• B) A quadratic relationship

• C) A cubic relationship

• D) An exponential relationship.

In Figure B, what is the length of the base?

• 4

• 10

• 15

• 12

The height of Figure D is ____.

• 3

• 4

• 12

• 15

What is the area of Figure A?

• 50

• 75

• 100

• 125

What is the height to base ratio for Triangle B?

• A) 15:4

• B) 4:15

• C) 3:1

• D) 1:3

For Triangle C, fill in the blank: The unit rate of the height to the base is ____.

• A) 1

• B) 2

• C) 3

• D) 4

Fill in the blank: The ratio of the height to the base for Triangle D is ____.

• A) 4:1

• B) 3:1

• C) 2:1

• D) 1:1

What is the constant of proportionality in the situation where Jack and Jill walked 4 yards every 3 seconds?

• 4/3

• 3/4

• 1/3

• 3