You have to divide the 5 and 5x by 5 add your variables together in alpha order=1
128.59943 rounds to about 128.599 because the next decimal is a 4 and your round down below 5.
You add them all up and you divide them from 5 and that's 49097/5 and that equals 9819 and 2/5 and that in decimal form is $9819.40.
The slope of the line that passes through points is
For the points (-4,-3) and (4,1) the slope is
Two perpendicular lines have slopes that form product of -1, then the slope of perpendicular line is
The line that passes through the point (−4, 3) and has slope -2 has equation:
Answer: y=-2x-5.