Question

To solve the system of equations below, Zach isolated x2 in the first equation and then substituted it into the second equation. What was the resulting equation?

Answer 1

isolate x^2 in the first equation. what does it equal?

Answer 2

x^2 = ?

Answer 3

subtract the y2

Answer 4

thats right

Answer 5

X^2=25

Answer 6

don't forget about the right side. What you do to one side of the equation you have to do to the other

Answer 7

x^2=25-y^2

Answer 8

thats right

Answer 9

now plug in 25-y^2 for x^2 in the second equation

Answer 10

@oscar55773