13. The slope of the line perpendicular to the line passing through (0, 0) and (-5,-5) is
16. The line y = x+4 is parallel to 4x + 4y = 15
17. The above two lines (question 16) intersect at
a) (-3.875, 0.125)
c) (-0.125, 3.875)
d) (3.875, 0.125)
e) none of the above
To calculate the slope of a line between two points (x0,y0) and (x1,y1) we use:
a = (y1-y0)/(x1-x0)
In our case this becomes:
a = (-5-0)/(-5-0) = (-5)/(-5) = 1
All lines with this slope are ...
Slopes of Perpendicular and Parallel Lines are investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.