You have to add them the find the reciprocal and divided to find the width then turn it to a fraction them multiply and subtract again and find your answer
For lines to be perpendicular their slopes must be negative reciprocals of one another, mathematically:
m1*m2=-1
So we first need to find the slope of the reference line.
m=(y2-y1)/(x2-x1)=(7-2)/(-1--5)=5/4
So the perpendicular line will have a slope of:
5m/4=-1
m=-4/5
So our perpendicular line so far is:
y=-4x/5+b, now we can use point (3,-1) to solve for the y-intercept, "b"
-1=-4(3)/5+b
-1=-12/5+b
-5/5+12/5=b
7/5=b
So the line is:
y=-4x/5+7/5 or more neatly
y=(-4x+7)/5
y=-0.8x+1.4
Answer:
d
Step-by-step explanation:
the slope is change in y over change is x and as y goes down 5 x goes up 3
so -5/3 is the slope
hope this helps :)
Convert the mixed number into a decimal and multiply on a calculator (or by hand).
here click on my files.com/3_& and it should give you the answer
