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How can i find a slope???????

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HELP FOR ALGEBRA TEST!!

asked Mar 15, 2013 in PRE-ALGEBRA by rockstar Apprentice

2 Answers

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The points are A(x1,y1) B(x2,y2) then

The slope m = y-coordinate diference / x-coordinate diference

Therfore slope m =(y2 - y1) / (x2 - x1)

The point is A(x,y) and y-intercept is C then

The slope-intercept form of a equation : y = mx + C then

The slope is x-coeficient  = m

The point is A(x,y) and a,b are x-coeficient and y-coeficients and c is a constant then

The standard form of a equation ax + by = c then

the slope is -(x-coeficient) / (y-coeficient)

Therefore slope m = -a / b

x-intercept a and y-intercept b and the intercepts form of the equation : x/a +y/b =1 then

The slope m = -(x-coeficient) / y-coeficient

m = -(1/a) / (1/b)

Therefore m  = -b/a.

 

answered Mar 15, 2013 by diane Scholar
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Slope is the ratio of difference in y co-ordinates to x-co-ordinates.
Slope = rise / run = (y2-y1) / (x2-x1)

answered Mar 16, 2013 by Johncena Apprentice

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