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what is the equation ofa line with the slope of 2 that passes through (6,15)?

guys im looking for helpppp asap. please help me?!

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Vivian L. | Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACHMicrosoft Word/Excel/Outlook, essay comp...
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Hi Tiffany;
The standard equation for lines is...
y=mx+b
m is slope
b is y-intercept--the point of y when x=0.
 
y=2x+b
Let's plug in the coordinate provided (6,15)...
15=2(6)+b
15=12+b
Let's subtract 12 from both sides...
-12+15=12+b-12
3=b
 
y=2x+3