Mathematics
10 Online
OpenStudy (anonymous):
Identify the correct slope and y-intercept of the equation 5x - 3y = -6
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OpenStudy (rmrjr22):
y = mx + b ... does this look familiar?
OpenStudy (anonymous):
yes @rmrjr22
OpenStudy (rmrjr22):
good, now make ur equation look like it and you will get your answer
OpenStudy (texaschic101):
can you put the equation in y = mx + b form ?
OpenStudy (anonymous):
i think
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OpenStudy (texaschic101):
lets try it......show me what you can do
OpenStudy (rmrjr22):
yeah, move this equation around!
OpenStudy (texaschic101):
5x - 3y = 6
you want to get y on one side
OpenStudy (anonymous):
-3y=5x-6
OpenStudy (rmrjr22):
keep going... get y all by itself
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OpenStudy (texaschic101):
good start
OpenStudy (anonymous):
add 3 to both sides
OpenStudy (texaschic101):
no....divide both sides by -3
OpenStudy (rmrjr22):
nope... right now its multiplying with y... to get it to the other side you have to do the opposite
OpenStudy (anonymous):
oh thats what confused me
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OpenStudy (rmrjr22):
watch ur signs btw
OpenStudy (anonymous):
so divide or multiply
OpenStudy (texaschic101):
divide
OpenStudy (anonymous):
ok
OpenStudy (rmrjr22):
when you have -5x +4 = 0 ... what do you do first?
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OpenStudy (anonymous):
subtract 4
OpenStudy (texaschic101):
good
OpenStudy (rmrjr22):
then you have -5x = 4... now get x by its lonesome
OpenStudy (texaschic101):
you do the opposite
OpenStudy (anonymous):
wait i think i have the answer
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OpenStudy (texaschic101):
-5x is multiplying, so do the opposite
OpenStudy (rmrjr22):
x = -4/5
OpenStudy (anonymous):
slope=5/3 y intercept=2
OpenStudy (texaschic101):
BINGO....see, you can do this
OpenStudy (anonymous):
ok thanks
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OpenStudy (rmrjr22):
yup
OpenStudy (texaschic101):
5x - 3y = -6
-3y = -5x - 6
-3y/-3 = -5/3x - 6/-3
y = -5/3x + 2
slope = -5/3 and y intercept = 2
OpenStudy (texaschic101):
way to go @Courage. .....good job
OpenStudy (anonymous):
Thanks
OpenStudy (rmrjr22):
its 5/3... the negative cancels out