miaruby08mt miaruby08mt
  • 11-02-2021
  • Mathematics
contestada

A line has a gradient of 4 and passes through the point (1, 9). What it's equation?

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aaryut1
aaryut1 aaryut1
  • 11-02-2021

answer: y - 4x - 5= 0

Step-by-step explanation:

  • y - y1 = m(x - x1)
  • y - 9 = 4( x - 1)
  • y - 9 = 4x - 4
  • y - 4x = -4 + 9
  • y - 4x = 5
  • y - 4x - 5 = 0

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