Proportion
2 is the relationship shown by the data linear? if so, model the data with an equation.
quare role
07. solving inequales
the relationship is not linear.
more equations and
the relationship is linear; y + 7 = 3(x - 5).
graphs and functions
the relationship is linear; y - 5 --3(x + 7).
linear equations and
the relationship is linear; y - 5 - 26x + 7).
writing equations of lines
11 protest
son
in slope form
nd writing linear
30%
aralleland
rpendicular lines

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.