moment-g.com->Linear-equations-> SOLUTION: exactly how to correctly execute the linear equation after y2-y1/x2-x1. I am struggling through y=mx+b var visible_logon_form_ = false;Log in or register.Username: Password: it is registered in one straightforward step!.Reset your password if girlfriend forgot it."; return false; } "> log On
Click here to check out ALL difficulties on Linear-equationsQuestion 1035969: exactly how to correctly do the linear equation ~ y2-y1/x2-x1. I am struggling v y=mx+b answer by Theo(11568)
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(Show Source): You can put this equipment on her website! y = mx + b is the steep intercept form of the equation that a straight line.m is the slopeb is the y-intercept.if you are given 2 points, you find the steep by y = (y2-y1) / (x2-x1)any one of the points deserve to be x1,y1.the various other of the clues is then x2,y2.you deal with for the steep first.once you discover the slope, friend take any kind of one the the points and also replace x v the x-coordinate that that point and y v the y name: coordinates of that point to resolve for the y-intercept.for example:your points space (1,1) and (2,3)assign (x1,y1) to (1,1)assign (x2,y2) to 2,3)your slope is (y2-y1) / (x2-x1) = (3-1) / (2-1) = 2 / 1 = 2the equation the y = mx + b becomes y = 2 * x + bnow you take any one that the points and also replace x through the x-coordinate of that point and y v the y-coordinate of that point and resolve for b.we"ll usage (1,1).y = 2 * x + b becomes 1 = 2 * 1 + bsimplify to get 1 = 2 + bsubtract 2 from both political parties of this equation come get:1 - 2 = bsolve because that b to obtain b = -1replace b v -1 and also your equation becomes y = 2 * x - 1here"s a graph of her equation.there is another method to find the y-intercept once you know the slope.that is to use the suggest slope type of the equation.that type is y-y1 = m * (x-x1).the slope is 2 and also the point we are using is (1,1).that method we assigned (1,1) to (x1,y1).all you require is a suggest on the line.any point on the line will do.this equation becomes (y-1) = 2 * (x-1).simplify to gain y-1 = 2x - 2add 1 come both political parties of this equation to get y = 2x - 1.that"s the slope intercept type of the equation, as soon as again.whether you start with y = 2x + b and replace y through 1 and also x through 1 it s okay you the very same answer as once you use y-1 = 2 * (x - 1).the second kind is called the suggest slope form.here"s some recommendations that could help.http://www.regentsprep.org/regents/math/moment-g.com/ac1/eqlines.htmhttp://www.purplemath.com/modules/strtlneq.htmhttp://www.purplemath.com/modules/strtlneq2.htmhttp://www.regentsprep.org/regents/math/moment-g.com/ac1/indexAC1.htm
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