Friday, April 17, 2015

What is the equation of the line (in y=mx+b form) that passes through (-3,1) and is perpendicular to the line 2x-5y=-17?

We need to find the line in the form (y= mx +
b).


Given the point (-3, 1) passes through the
line.


The, we will write the line equation in the slope
form.


==> y- y1= m (x-x1) where (x1,y1) is any point
passes through the line and m is the slope.


Then, we will
substitute the point.


==> ( y -1) = m
(x+3)


But, given the perpendicular line 2x-5y =
-17.


We know that the product of the slopes =
-1.


Let us determine the slope of the perpendicular
line.


==> 2x -5y =
-17


==> -5y = -2x -
17


==> y= (2/5)x
+17/5.


Then, the perpendicular slope is
2/5.


==> (2/5)* m =
-1


==> m =
-5/2


==> (y-1) = (-5/2)( x+
3)


==> y-1 = (-5/2)x -
15/2


==> y= (-5/2)x - 15/2 +
1


==> y= (-5/2)x -
13/2

No comments:

Post a Comment

How is Anne's goal of wanting "to go on living even after my death" fulfilled in Anne Frank: The Diary of a Young Girl?I didn't get how it was...

I think you are right! I don't believe that many of the Jews who were herded into the concentration camps actually understood the eno...