zoebear3
zoebear3 zoebear3
  • 06-09-2017
  • Mathematics
contestada

How do I find the value of x so the slope of a line through (x,5) and (4,2) is 1/3?

Respuesta :

mtomas598
mtomas598 mtomas598
  • 07-09-2017
slope=change in y/change in x
1/3 = 5-2/x-4 (or 2-5/4-x)
1/3 = 3/x-4
then cross multiply
1(x-4) = 3(3)
x-4=9
add 4 to both sides
x=13
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