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Question 398714: yea i need to find the slope of the line perpendicular to the graph of each equation. please help thank you
19. y=2x
20. y=-3x
21. y= 7/5x - 2
22.y= -x/5 - 7
23. 2x + 3y = 5
24. y= -8
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! yea i need to find the slope of the line perpendicular to the graph of each equation. please help thank you
19. y=2x
The slope is the coefficient of x, m = 2 for #19
The slope of lines (not THE line, there's an infinite number of them) is the negative inverse.
That's -1/2 for this one.
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20. y=-3x
21. y= 7/5x - 2
22. y= -x/5 - 7
Do 20 - 22 the same way.
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23. 2x + 3y = 5
Solve for y, then m is the coefficient of x and do it like the others.
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24. y= -8
In this one, the coefficient of x = 0. The inverse is -1/0 = undefined.
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