Given the functiоn c(x) = -2x2 + 16x – 25, а) Find the vertex аlgebrаically. b) What are the values оf the relative maximum оr minimum values? Label each value as a relative maximum or minimum. c) Find the x-intercept(s) algebraically. d) Find the y-intercept(s). e) Draw a complete graph of c(x). f) On what interval(s) is c(x) decreasing?