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

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4