4.4.3 Quiz: Parallel and Perpendicular Lines XA :
A walking path across a park is represented by the equation y = -2x - 7. A
new path will be built perpendicular to this path. The paths will intersect at
the point (-2,-3). Identify the equation that represents the new path.
10-
310
A. y = - 1/2x - 4
B. y = 1/2x - 2
C. y =2x + 1

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

12cm

the answer is d

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.