Linear Algebra
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OpenStudy (anonymous):
What is the slope of a line parallel to the line whose equation is 5x + 3y = 15?
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OpenStudy (math&ing001):
First we find the slope of 5x + 3y = 15
OpenStudy (anonymous):
i dont know how to
OpenStudy (anonymous):
ive always been confused with slopes
OpenStudy (math&ing001):
Do it like you're trying to solve the equation for y.
OpenStudy (anonymous):
how bout you solve for y first might i suggest
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OpenStudy (anonymous):
then what ever is times x is your slope
OpenStudy (math&ing001):
Example 4y+x = 6 ie y = -1/4 x + 6/4
Here -1/4 is the slope
OpenStudy (anonymous):
that makes a little bit more sense
OpenStudy (math&ing001):
Well can you do it now ?
OpenStudy (anonymous):
ill try to find the slope
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OpenStudy (anonymous):
is the slope 5/3?
OpenStudy (anonymous):
remember solve for y and what ever is multiplying x is your slope
OpenStudy (math&ing001):
You forgot the (-) sign !
OpenStudy (anonymous):
-5/3?
OpenStudy (anonymous):
it would be negative but yes
and your y intercept would be 5
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OpenStudy (anonymous):
correct
OpenStudy (math&ing001):
Yep ! So now each line that has a slope of -5/3 is parallel to the line whose equation is 5x + 3y = 15
OpenStudy (anonymous):
ok...thank you!!!
OpenStudy (anonymous):
welcome
OpenStudy (math&ing001):
YW