Two points on a graphed line are (4, 7) and (3, 8). What is the slope of the line?
Points: (7, -3) and (-7, 4) Slope: (-3-4)/(7--7) = -1/2 or -0.5
The slope, m, of a line given 2 points is: (y2 - y1) / (x2 - x1). m = (-6 - (-9)) /(3-(-4)) or 3/7. Therefore parallel line slope is 3/7.
Points: (-2, 7) and (2, 3)Slope: -1
Slope = 7--3 over 0-8 = -5/4
Points: (1, 1) and (3, 15) Slope: 7
Slope of the given line is 3/7 So slope of perpendicular line is -7/3
10
Two points on a graphed line are (4, 7) and (3, 8). What is the slope of the line?
Slope of given line = -3 Therefore, slope of perpendicular = 1/3
The line is vertical on the graph. Its slope is infinite.
15
The line 'Y = - 3' has a slope of zero. Any line parallel to it also has a slope of zero. The line parallel to it with a Y-intercept of 7 is: Y = 7
(3--4)/2--6) = 7/8 which is the slope of the line.
Points: (-3, -10) and (5, -7) Slope: 3/8
Points: (7, -3) and (-7, 4) Slope: (-3-4)/(7--7) = -1/2 or -0.5
Points: (-3, -10) and (5, -7) Slope: 3/8