What slope does this point-slope equation represent? y=-9-(1/2)(x+1)?

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What slope does this point-slope equation represent? y=-9-(1/2)(x+1)?

y=-9-(1/2)(x+1) Thanks very much for your help!

2006-11-29 15:07:43 · 3 answers · asked by i_need_a_username99 1 in Science & Mathematics ➔ Mathematics

3 answers

y=-9-1/2(x+1)
= -9 - 1/2 x -1/2
= -1/2 x - 9 1/2

comparing with y = mx+c then m = -1/2 = slope

2006-11-29 15:16:57 · answer #1 · answered by 【ツ】ρεαcε! 5 · 0⤊ 0⤋

slope=-1/2

2006-11-29 15:12:59 · answer #2 · answered by raj 7 · 0⤊ 0⤋

The slope is -1/2 ... you can figure this out by using the formula for slope: y2-y1/x2-x1 ... find the y coordinates at x=0 and x=1.

You get: (0,-9.5) and (1,-10) ... -10--9.5/1-0 is -.5/1, which equals -1/2.

2006-11-29 15:14:49 · answer #3 · answered by Michael E 2 · 0⤊ 0⤋