check my answer

Dominic

Junior Member
Joined
Jun 16, 2005
Messages
69
What is the slope of a line that is perpendicular to the graph of : y = -1/2x + 4?

y = -1/2x + 2
-1/2 * 2 = -1

So the slope is -1.

Let me know if this is right or wrong.

Thanks for the help.
 

pka

Elite Member
Joined
Jan 29, 2005
Messages
7,813
NO INDEED.
The slope is 2.
 
G

Guest

Guest
Find the slope of the line given. Call it m.

The slope of the perpendicular line is -1/m.
 

Dominic

Junior Member
Joined
Jun 16, 2005
Messages
69
Thank u alex and pka.
 

Matt

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Jul 3, 2005
Messages
183
Do you understand now why the slope is 2, Dominic?
 

Dominic

Junior Member
Joined
Jun 16, 2005
Messages
69
Yes, thank you for asking.
 

~Midnight.Kitten~

Junior Member
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Jun 27, 2005
Messages
87
did you use the formula x1/y1 - x2/y2 ??
 
G

Guest

Guest

~Midnight.Kitten~

Junior Member
Joined
Jun 27, 2005
Messages
87
alexflury said:
did you use the formula x1/y1 - x2/y2 ??
Why would we?
well in math class last year i remember mr bradley my old math teacher for 8th grade saying to use that.
 
G

Guest

Guest
Use that when? You use whatever gets the job done.
 
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