Xintercepts for x-intercept of y = -4x^2 + 8x + 12

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3