Mathematics
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OpenStudy (anonymous):
rewrite the slope-intercept form equation into standard form.
y=-2x+4
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OpenStudy (anonymous):
@sk8king14
OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
standard form is Ax+By = C
jimthompson5910 (jim_thompson5910):
A,B and C are just fixed numbers and they are whole numbers
OpenStudy (anonymous):
4x+2y=0 then?
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jimthompson5910 (jim_thompson5910):
Example
7x + 10y = 13
is in standard form (this isn't the answer)
jimthompson5910 (jim_thompson5910):
y=-2x+4 is not in standard form, but you can do one move to get it into standard form
jimthompson5910 (jim_thompson5910):
notice the position of the x terms
Ax+By = C
y=-2x+4
jimthompson5910 (jim_thompson5910):
you need to get y=-2x+4 into the form Ax+By = C
OpenStudy (anonymous):
how do you do that
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jimthompson5910 (jim_thompson5910):
notice how x is on the left side in Ax+By = C
but x is on the right side in y=-2x+4
OpenStudy (anonymous):
so you have to flip it?
jimthompson5910 (jim_thompson5910):
how would you move that "2x" over
jimthompson5910 (jim_thompson5910):
what can be done to both sides
OpenStudy (anonymous):
i have no idea lol
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jimthompson5910 (jim_thompson5910):
-2x+4 is the same as 4 - 2x, agreed?
OpenStudy (anonymous):
yes
jimthompson5910 (jim_thompson5910):
so what operation undoes the subtraction of 2x
OpenStudy (anonymous):
the addition
jimthompson5910 (jim_thompson5910):
adding 2x to both sides, yes
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jimthompson5910 (jim_thompson5910):
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