find the equation of the line (in the form y=mx+b) with slope -8 passing through the point (2,-7)?

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2007-12-20 02:16:58 · 2 answers · asked by joseph m 1 in Science & Mathematics ➔ Mathematics

y + 7 = -8(x - 2)
y + 7 = -8x + 16
y = -8x + 9

2007-12-20 02:20:41 · answer #1 · answered by Philo 7 · 0⤊ 0⤋

y=mx+b

y=-8x+b
plug teh x and y in to this equation and solve for b
-7=(-8)2+b
-7=-16+b
9=b

y=(-8)x+9

2007-12-20 10:21:52 · answer #2 · answered by reen 2 · 1⤊ 0⤋