Luskar1544 Luskar1544
  • 25-09-2016
  • Mathematics
contestada

What is the slope of the line between (3, −4) and (−2, 1)?

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texaschic101
texaschic101 texaschic101
  • 25-09-2016
slope formula : (y2 - y1) / (x2 - x1)
(3,-4)....this is set 1, so x1 = 3 and y1 = -4
(-2,1)...this is set 2, so x2 = -2 and y2 = 1
now we sub...but pay close attention to the signs
slope = (1 - (-4) / (-2 - 3) = (1 + 4) / -5 = 5/-5 = -1 <== slope
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