Find the angle between the lines 3x+5 and 3y+x+6=0
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Answer:
90 degrees
Step-by-step explanation:
y = 3x + 5, this one has a slope of 3
3y + x + 6 =0
3y = -x -6
y = -1/3(x) - 2 , this one has a slope of -1/3
Since both equation slopes are negative inverse of each other, then they intersect each other at right angle (90 degrees)
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