In the standard (x,y) coordinate plane, lines a and c intersect at point (5,-2). Lines b and c intersect at point (-3,3). What is the slope of line b?
A.) 1/2
B.) -5/2
C.) -2/5
D.) -5/8
E.) cannot be determined
A.) 1/2
B.) -5/2
C.) -2/5
D.) -5/8
E.) cannot be determined
To find the slope of line b, find the slope of the line passing through the points (5,-2) and (-3,3).
y2 - y1
---------- = slope of a line
x2 - x1
The given points are the coordinates (x1,y1) and (x2,y2).
(5,-2) and (-3,3)
3 - (-2)
--------- = slope of the line {substituted coordinates into slope formula}
-3 - 5
5
---- = slope {subtracted on top and bottom}
-8
D.) -5/8
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y2 - y1
---------- = slope of a line
x2 - x1
The given points are the coordinates (x1,y1) and (x2,y2).
(5,-2) and (-3,3)
3 - (-2)
--------- = slope of the line {substituted coordinates into slope formula}
-3 - 5
5
---- = slope {subtracted on top and bottom}
-8
D.) -5/8
Ask Algebra House
