posted by sarah on .
find the points of intersection of the following pairs of equations.
a. y=x^2 and y=x +2
b. y=x^2 and y=8-x^2
c. y=x^2 and x=y^2
a. Substitute (x + 2) from the second eq., simplify and solve for x. Then solve for y.
The other two equations are done the same way.
a. x+2 = x^2
x^2 - x - 2 = 0
(x - 2)(x + 1) = 0
can you finish it?
for for like a. it would be (2, 4) and (-1, 1)?
Yes. Sorry it took so long to reply.