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anonymous
 4 years ago
find the equation of the line passing through the given points A/a(2,4) & b(1,5)
b/ c(2,4) & d(1,5). ?
anonymous
 4 years ago
find the equation of the line passing through the given points A/a(2,4) & b(1,5) b/ c(2,4) & d(1,5). ?

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2bornot2b
 4 years ago
Best ResponseYou've already chosen the best response.2Solution to part A \[y(4)=\frac{45}{2(1)}(x(2))\]\[\implies y+4=\frac{9}{1}(x+2)\]\[\implies y+4=9x+18\implies y=9x+14\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0First find the slope:\[m = \frac{\Delta y}{\Delta x} = \frac{y_{2}y_{1}}{x_{2}x_{1}} = \frac{5  (4)}{(1)(2)} = \frac{9}{1} = 9\] Then, using the given points and the slope, plug them in to the pointslope formula:\[(y  y_{1}) = m(xx_{1})\]\[[y(4)] = 9[x(2)]\]\[y+4 = 9(x+2)\]You can then simplify it into slopeintercept form:\[y +4 = 9x+18\]\[y = 9x+14\]
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