Linear Algebra
18 Online
OpenStudy (soccer2080):
rewrite the equations in slope intercept form
4x+5y=15
9x+3y=6
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jhonyy9 (jhonyy9):
do you know what mean the slope intercept form ?
OpenStudy (vuriffy):
Do you know what the slope intercept form means?*
OpenStudy (vuriffy):
@jhonyy9 A little fuzzy sentence there, buddy.
OpenStudy (soccer2080):
yea like y=2x+4
jhonyy9 (jhonyy9):
soccer exactly so in this style is correct
just rewrite thse two equations in this way - ok. ?
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OpenStudy (soccer2080):
oh ok
jhonyy9 (jhonyy9):
hope helped you
good luck
bye bye
OpenStudy (vuriffy):
Put everything but the y on the other side.
OpenStudy (soccer2080):
ok thank you
OpenStudy (vuriffy):
Do you know how?
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jhonyy9 (jhonyy9):
np
was my pleasure
and anytime
bye bye
OpenStudy (soccer2080):
um no
OpenStudy (soccer2080):
ok
OpenStudy (vuriffy):
4x+5y=15
Actually, let's subtract 4x first.
OpenStudy (vuriffy):
5y = 15 - 4x.
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jhonyy9 (jhonyy9):
4x+5y=15subtract from both sides 4x and divide both sides by 5
OpenStudy (soccer2080):
ok
OpenStudy (vuriffy):
5y = 15 - 4x.
divide by 5.
y = 3 - 4x/5.
OpenStudy (soccer2080):
ok
OpenStudy (vuriffy):
9x+3y=6
Do the same with this one:
subtract 9x.
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OpenStudy (vuriffy):
3y=6 - 9x.
Divide by 3.
OpenStudy (vuriffy):
y = 2 - 3x.
OpenStudy (soccer2080):
thank you
OpenStudy (vuriffy):
Of course, do you understand it completely?
OpenStudy (soccer2080):
yes
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OpenStudy (vuriffy):
Good job!
OpenStudy (complexdotproduct):
5y=15-4x / 5 -> y = -4x/5 + 3 = -0.8x + 3
3y=6-9x / 3 -> y = -3x + 2