help... step by step please.
Solve the equation for y. Then graph the equation. 5x – 4y = 12
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OpenStudy (anonymous):
5x – 4y = 12
subtract 5x from both sides
OpenStudy (anonymous):
do it
OpenStudy (anonymous):
-4y=7x ?
OpenStudy (anonymous):
idk...
OpenStudy (anonymous):
no its
4y = 12-5x
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OpenStudy (anonymous):
now divide both sides by 4
OpenStudy (anonymous):
???
OpenStudy (anonymous):
dont I have to subtract 12-5x first?
which gives me 7x?
OpenStudy (anonymous):
no no you have this
5x – 4y = 12
subtracting 5x from both sides we get
5x-5x-4y = 12-5x
-4y = 12 - 5x
OpenStudy (anonymous):
ok.... i'm confused what next?
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OpenStudy (anonymous):
now dividing both sides by -4 we get
y = -3+5/4x
re arranging we get
y= (5/4)x -3 this the first part of your question
OpenStudy (anonymous):
is that the right answer?
OpenStudy (anonymous):
yesssssss
OpenStudy (anonymous):
now take
y= (5/4)x -3
to plot this frist put x =0 in it you will get some y
then put y = 0 in y= (5/4)x -3
you will get some x
plot both these points and join them you are done
OpenStudy (anonymous):
me coming after some time see you soon
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OpenStudy (anonymous):
what
OpenStudy (anonymous):
uhmm... could you help with another question I tried doing it but I got all mixed up