SOLUTION: Write an equation of a line that has slope of -2 and passes through C(3,7) Answer in slope-intercept form and standard form.

Algebra ->  Linear-equations -> SOLUTION: Write an equation of a line that has slope of -2 and passes through C(3,7) Answer in slope-intercept form and standard form.      Log On


   

Question 182767: Write an equation of a line that has slope of -2 and passes through C(3,7) Answer in slope-intercept form and standard form.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The slope-intercept form is
y+=+mx+%2B+b
given:
m+=+-2
If (3,7) is a point on the line, I can plug in these
values to find b
7+=+%28-2%29%2A3+%2B+b
b+=+7+%2B+6
b+=+13
So the equation is
y+=+-2x+%2B+13
and in standard form
2x+%2B+y+-+13+=+0
check:
2x+%2B+y+-+13+=+0
2%2A3+%2B+7+-+13+=+0
13+-+13+=+0
OK