With algebra and show work : ) an explanation would be nice too because this topic confuses me : / the function f(t) = t^2 + 4t − 14 represents a parabola. part a: rewrite the function in vertex form by completing the square. show your work. part b: determine the vertex and indicate whether it is a maximum or a minimum on the graph. how do you know? part c: determine the axis of symmetry for f(t).