Question 686685: i need the answer for the following & steps:(-1,0),b=3
m=-2,(3,-7)
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! In the x-y plane, the equation of a line that is not "vertical" can be written, in the  form, as 
The number  is the  , and  is the  .
PROBLEM # 1
If a line passes through the point (-1,0) and has the y-intercept  ,
its equation will be 
We just have to find .
THE SIMPLE WAY:
We know that the point (-1,0), with  and 
belongs to that line, so we substitute those values for  and  tp get
 -->  --> 
The equation for that line is  with  and , so it is 
PROBLEM # 2
If a line has a slope of  ,
and passes through the point (3,-7), with  and  ,
the equation of the line in slope-intercept form will be  with some .
ONE WAY:
We can find by substituting the coordinates of the point (3,-7) given
 -->  -->  --> 
So the equation is 
ANOTHER WAY:
The equation of a line with slope .
that passes through point P( , ) is
 in  form
Substituting the coordinates of our point P(3,-7),
and
we get
 -->  -->  -->
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