tell wether the graphs of the pair of equations are parallel, perpendicular or neither.
6x+5y=4
5x-6y=7
2007-02-24 11:06:43 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
6x + 5y = 4
5y = -6x + 4
y = (-6/5)x + (4/5)
5x - 6y = 7
-6y = -5x + 7
y = (5/6)x - (7/6)
since the 2 graphs have opposite reciprocal slopes
The 2 graphs are perpendicular to each other.
2007-02-24 12:40:54 · answer #1 · answered by Sherman81 6 · 0⤊ 0⤋
Put each in slope int form
5y=-6x+4
y=-6/5x+4/5
-6y=-5x+7
y=5/6x -7/6
They are perpendicular lines, because the slope -6/5 and 5/6 are negative reciprocals
2007-02-24 19:10:02 · answer #2 · answered by leo 6 · 0⤊ 1⤋
find the slopes of each
for the first the slope is -6/5
for the second the slope is 5/6
because their product is equal to -1 they are perpendicular.
2007-02-24 19:10:03 · answer #3 · answered by Rob M 4 · 0⤊ 0⤋
Neither
2007-02-24 19:09:44 · answer #4 · answered by bruinfan 7 · 0⤊ 1⤋
find the slope of each line first
2007-02-24 19:10:08 · answer #5 · answered by ? 3 · 0⤊ 0⤋