# SOLUTION: how would i write the equation for a pair of parallel lines with the points: (-4,-1), (1,1) [one of them] and (-2,-5), (3,-3) [the other]???

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: how would i write the equation for a pair of parallel lines with the points: (-4,-1), (1,1) [one of them] and (-2,-5), (3,-3) [the other]???      Log On

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 Click here to see ALL problems on Linear-equations Question 59475This question is from textbook : how would i write the equation for a pair of parallel lines with the points: (-4,-1), (1,1) [one of them] and (-2,-5), (3,-3) [the other]???This question is from textbook Answer by funmath(2925)   (Show Source): You can put this solution on YOUR website!how would i write the equation for a pair of parallel lines with the points: (-4,-1), (1,1) [one of them] and (-2,-5), (3,-3) [the other]??? You're right the lines would be parallel. The slope of the first line can be found with the slope formula: , where (x1,y1) and (x2,y2) are given points and m is slope. For (-4,-1) and (1,1) the slope is: The slope of the other 2 points is also 2/5. All parallel lines have the same slope. : Once you have a slope and a point you can write the equation of a line using the point-slope formula , m=slope, and (x1,y1)=any point on the line: For the first set of points, let m=2/5 and (x1,y1)=(1,1) For fun, you can use the other point to get this same equation. : I'll let you prove that I'm right about the slope of the other two points is also m=2/5 (x1,y1)=(-2,-5) Now use the other point to get this same equation for fun. Happy Calculating!!!