Find the center and the radius of the given circle. (x - 15)2 + (y + 15)2 = 57
center:
radius:

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

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?

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?