1. If you have a question that uses the word "equivalent" and is an expression, how will you solve it? 2. If you have a question that uses the word "equivalent" and is an equation, how will you solve it?

3. How do you know whether something is an equation or an expression? (one sentence is fine for this question)

4. If you are being asked to solve an equation that has only one variable, how will you solve it?

5. If you are asked to find the solutions, zeros, or roots, how will you find them using the calculator.

will crown

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.