jonest2
jonest2 jonest2
  • 09-10-2017
  • Mathematics
contestada

The lines x= 1/4y + a and y=1/4x +b intersect at the point (1,2). What is a+b?

Respuesta :

wuzzleluver
wuzzleluver wuzzleluver
  • 09-10-2017
Plug in the point for each equation:

x=1/4y + a
(1)=1/4(2) + a
1=1/2+a
1/2=a

y=1/4x+b
2=1/4(1) +b
b= 7/4

Solve a+b:
a+b=?
(2/4)+(7/4)= 9/4= 2.25

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