find the slope of 3x-7y=21

Sagot :

  Slope = 0.857/2.000 = 0.429 in simple form
1. slope is 3/7
3x - 7y = 21
3x - 3x - 7y = 21 - 3y
-7y = 21 - 3x
 -7        -7
   y = -3 + 0.43x