X
-30
25 -20 -15
10
5.
The graph shows one of the linear equations for a system of equations. Which equation represents the second linear equation for the
system of equations that has the solution which corresponds to a point at (6,-2)?
es ) 0: X
A: x
A)
1/3x + 3y = 4
*x+4y=-4
B)
C)
D)
x+2y-2

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

Proportions in triangles solve for x

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.