slope=-2, passing through (-2,-1/4) please help just do not get this and last one on homework?

slope = -2, passing through (-2,-1/4)

point-slope form is :

(y - y1) = m(x - x1)

y - (-1/4) = - 2(x - (-2))

I believe that is the point-slope form of the line.

Proceeding to transform that to the slope-intercept form,

y + (1/4) = - 2(x + 2)

y + (1/4) = - 2x - 4

y = - 2x - 4 - (1/4)

y = - 2x - (16/4) - (1/4) ................... [ 4 = (16/4) ]

y = - 2x - (17/4)

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I made a graph showing that the above equation does pass through the given point.

http://s1164.photobucket.com/user/iago9/media/math...