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Write y = ½x – 5 in standard form.

 Jan 21, 2015

Best Answer 

 #1
avatar+109520 
+5

Hi Selena,

y = ½x – 5

Standard form is     Ax+By=C

Multiply both sides by 3 to get rid of the fraction

2y=2[(1/2)x-5]

2y=x-10

It is always nice to have a positive number in front of the x so I will leave that and add 10 to both sides

2y+10=x

Now I'll swap sides

x=2y+10

now I want the 10 by itself so subtract 2y from both sides

x-2y=10

There is an invisable 1 in front of the x    

 Jan 22, 2015
 #1
avatar+109520 
+5
Best Answer

Hi Selena,

y = ½x – 5

Standard form is     Ax+By=C

Multiply both sides by 3 to get rid of the fraction

2y=2[(1/2)x-5]

2y=x-10

It is always nice to have a positive number in front of the x so I will leave that and add 10 to both sides

2y+10=x

Now I'll swap sides

x=2y+10

now I want the 10 by itself so subtract 2y from both sides

x-2y=10

There is an invisable 1 in front of the x    

Melody Jan 22, 2015

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