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anonymous
 5 years ago
Find the equation of the line that contains the given points. (Let y be the dependent variable and let x be the independent variable.)p1(4,5) p2(3,4) could someone help me please?
anonymous
 5 years ago
Find the equation of the line that contains the given points. (Let y be the dependent variable and let x be the independent variable.)p1(4,5) p2(3,4) could someone help me please?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you recall the formula for the slope of a line?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0find the slope by subtracting one set of points from the other olike this: (4, 5) (3,4) (4, 5) (3,4)  (1,9) slope = y/x = 9/1 = 9

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0( x , y ) (x1,y1)  yes....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i find it easier to stack them; and subtract the bottom from the top.... then slope = m = y/x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you know I haven't thought of that . It looked too easy!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0so we have an equation now that looks like: y = 9x + b ; plug in one of the points to solve for b

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.05 = 9(4) + b 5 = 36 + b 5 36 = b 31 = b .................... y = 9x 31

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0another format is to put all the variables to one sidelike this: 9x +y = 31 ; but some textbooks hate to have a () out front so they do this: 9x y = 31

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok the first way looks easier!

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0:) y = 9x31 is the "slope,intercept" form. 9xy=31 is the "standard" form
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