Find the vertex of 2x^2+8x+1
a. (-2,-7)
b.(1,7)
,-1)
d.(3,-4)

The circumference of a circle is 5 pi cm. what is the area of the circle?

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0