CPM Homework Help : A2C Problem 11-38

Solve the following systems of equations and describe the shapes of the intersections. Homework Help ✎
1. z² = x² + y²
  z = x + 2
2. z² = x² + y²
  z = 7

Hint (a):

Substitute the second equation for z in the first, and simplify to find an equation of x and y.

Answer (a):

What kind of graph is this?

$x =\frac{1}{4}y^2 -1$

Hint (b):

See part (a).