Key9W3ineqsoma
Key9W3ineqsoma Key9W3ineqsoma
  • 02-10-2016
  • Mathematics
contestada

what is the slope of the straight line through points (2,8) and (4,6)?

Respuesta :

Kunchan
Kunchan Kunchan
  • 03-10-2016
Slope of the line
(8-6)/(2-4)
2/-2
-1

General equation of the line
y = mx + c

m=-1
so 
y = -x + c
if it passes through (2,8)
8 = (-1*2) + c
8 = -2 + c
c = 10

so the equation is
y = -x + 10
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