Answers

2014-10-13T21:02:30+08:00
If you are to find the slope of the given points, then you'll have it as:
m =  \frac{y_2 - y_1}{x_2 - x_1}
m =  \frac{4-1}{5-2}
m = 1
if you are asked of the equation of the line then you'll have it as 
(x-x1)m = (y-y1)
since we already know m then all you have to do is assign a point either (2,1) or (5,4) to the equation. let's have (2,1)
(x - 2)1 = (y - 1)
x - 2 = y - 1
y - x = -2 + 1
y - x = -1
or in slope-intercept form
y = x -1

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