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simultaneous equations (1 Viewer)

mtsmahia

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Joined
Jun 21, 2008
Messages
284
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Male
HSC
2010
Hi can someone help with this question

Solve

y=x^2 +1

y=1-x^2

thanks!
 

studentcheese

Member
Joined
Oct 19, 2008
Messages
628
Gender
Female
HSC
2010
Graph the two lines, then find the point of intersection.

Or substitute equation 1 into equation 2 for y

1- x^2 = x^2 +1
0 = 2x^2
x = 0

substitute x = 0 in equation 1
y= 0^2 + 1
y= 1

point of intersection: (0,1)
 

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