SOLUTION: What is the slope of a line that is perpendicular to the line that passes through the points (4,7) and (9,3)?
A. -4/5 B. -5/4 C. 4/5 D. 5/4
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Question 150781: What is the slope of a line that is perpendicular to the line that passes through the points (4,7) and (9,3)?
A. -4/5 B. -5/4 C. 4/5 D. 5/4
Found 2 solutions by Fombitz, ankor@dixie-net.com:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
First find the slope of the line that passes through those two points.
The formula for slope is,
Perpendicular lines have slopes that are negative reciprocals of each other.
D) 5/4
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
What is the slope of a line that is perpendicular to the line that passes through the points (4,7) and (9,3)?
:
Use the slope formula to find the slope: m =
:
Assign values: x1=4, y1=7; x2=9, y2=3
m1 = = =
:
The relationship of slopes of perpendicular lines: m1*m2 = -1; find m2
* m2 = -1
m2 = -1 *
m2 = + slope of the perpendicular line
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