The vertex of this parabola is at (5, -4). which of the following could be its equation?

a.
y = 2(x - 5)2 - 4

b.
y = 2(x + 5)2 - 4

c.
y = 2(x + 5)2 + 4

d.
y = 2(x - 5)2 + 4

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled