Question

Which system is equivalent to
{y=-2x2
y=x-2}

Answer 1

Answer: C on edge 2022

Explanation:

if wrong i’m gay and Bidens a good president *they almost all suck anyways*

Answer 2

OPTION C: y = -2y² - 8y - 8

x = y + 2

Explanation:

The given equations are:

`$ y = -2x^2 \hspace{20mm} \hdots (1) $`

`$ y = x - 2 \hspace{20mm} \hdots (2) $`

From Equation (2), we get:

x = y + 2

Substituting this value of x in Equation (1), we get:

y = -2(y + 2)²

Expanding it in
`$ (a + b)^2  = a^2 + 2ab + b^2 $`, we get:

y = -2{y² + 4y + 4}

⇒ y = - 2y² - 8y - 8

Therefore, OPTION C is the answer.