Question

To solve the system of equations below, Chen isolated x2 in the first equation and then substituted it into the second equation. What was the resulting equation? (x2 + y2 - 16) / 4 = 1 1) 16 - y² = 1/4 2) x + 16 - y = 1/4 3) x - y² - 16 = 1/4 4) V 216 - 1/4

Answer 1

Chen isolated x² in the first equation, resulting in x² = 4(y² - 16). Substituting x² into the second equation should yield a new equation in terms of y only, however, the provided choices do not correctly reflect this substitution.

Step-by-step explanation:

To solve the system of equations, Chen isolated x2 in the first equation. This step would result in x2 = 4(y2 - 16). Substituting x2 into the second equation is supposed to create a new equation only in terms of y. However, none of the provided choices match this substitution correctly.

Essentially, none of the choices provided (1-4) is the expected outcome of the correct substitution process. Typically, to isolate x2 in the given equation (x2 + y2 - 16) / 4 = 1, you would multiply both sides by 4 and subtract y2 from both sides to get x2 = 4 - y2.