katelynmacey
katelynmacey katelynmacey
  • 26-04-2017
  • Mathematics
contestada

This system has one solution what is the y coordinate of the solution y= -2x+4 y= x^2 +4x+13

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ghanami
ghanami ghanami
  • 29-04-2017
hello : the system is :
 y= -2x+4 ...(1)
y= x² +4x+13....(2)
x²+4x+13 = -2x+4
x²+6x+9=0
(x+3)² =0
x+3=0
x= -3 
subsct in (1) : y=-2(-3)+4 =10
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