anonymous
  • anonymous
Determine the slope of the line which passes through these two points: (-1, 3) and (6, 9).
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
6/7
anonymous
  • anonymous
y=ax+b a=(9-3)/(6-(-1))=6/7
anonymous
  • anonymous
(9-3)/(6--1) 6/7

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anonymous
  • anonymous
Line equation = \[y-y _{0}=2a(x-x _{0})\]
anonymous
  • anonymous
y−y 0 =a(x−x 0 ) this is right
anonymous
  • anonymous
y-9=2*(6/7)*(x-6)
anonymous
  • anonymous
don't mix it up with physic
anonymous
  • anonymous
you're wrong amir.sat
anonymous
  • anonymous
you're wrong
anonymous
  • anonymous
not me
anonymous
  • anonymous
review your lesson more timea lol
anonymous
  • anonymous
|dw:1327679283219:dw|
anonymous
  • anonymous
Gradient = distance up divided by distance along, i.e. gradient is \[m = \frac{y_2 - y_1}{x_2-x_1}\] Where the points have coordinates \[(x_1, y_1), (x_2, y_2)\] That is the formula you use to calculate the gradient of any line passing through two known points.
anonymous
  • anonymous
y=(12/7)x-(9/7)
anonymous
  • anonymous
Use \[\Large \frac{{\Delta y}}{{\Delta x}} = \frac{{{y_2} - {y_1}}}{{{x_2} - {x_1}}}\]
anonymous
  • anonymous
\[\Large \frac{{{y_2} - {y_1}}}{{{x_2} - {x_1}}} = \frac{{9 - 3}}{{6 - - 1}} = \frac{6}{7}\] So whoever said otherwise is incorrect.

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