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What is the point of contact when the equation containing the points of -3 2 and 6 8 crosses the equation 3x plus 2y -21 equals 0 showing work?
Wiki User
∙ 7y ago
Points: (-3, 2) and (6, 8)
Slope: 2/3
Equation: y-8=2/3(x-6) => 3y-24=2x-12 => 3y=2x+12
Solving equations 3y=2x+12 and 3x+2y-21=0 simultaneously: x = 3 and y = 6
Therefore the point of contact is at: (3, 6)
Wiki User
∙ 7y ago
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