Question
if the line containing the points (a,3) and (b,2) has a slope of 1/7, then a-b=
Answers
Bosnian
Slope :
m = ( y2 - y1 ) / ( x2 - x1 )
In this case :
x1 = a
x2 = b
y1 = 3
y2 = 2
m = ( y2 - y1 ) / ( x2 - x1 ) = 1 / 7
( 2 - 3 ) / ( b - a ) = 1 / 7
- 1 / ( b - a ) = 1 / 7
Reciprocal value :
- ( b - a ) = 7
- b + a = 7
a - b = 7
m = ( y2 - y1 ) / ( x2 - x1 )
In this case :
x1 = a
x2 = b
y1 = 3
y2 = 2
m = ( y2 - y1 ) / ( x2 - x1 ) = 1 / 7
( 2 - 3 ) / ( b - a ) = 1 / 7
- 1 / ( b - a ) = 1 / 7
Reciprocal value :
- ( b - a ) = 7
- b + a = 7
a - b = 7