What is the vertex of the graph of the function f(x) = x2 + 8x - 2 ?
O (-4, 18)
0 (0,2)
O (-8,-2)
O (-4, -18)

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Can someone explain to me how to do