H(x) = x2 + 1 k(x) = x – 2 3h(2) + 2k(3) =
.

When you answer this can you explain

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?