Find the Vertex, the Y-Intercept, and the X-Intercepts (If Any $h ( t ) = - 16 t ^ { 2 } + 32 t + 23$

Multiple Choice

Find the vertex, the y-intercept, and the x-intercepts (if any exist) , and graph the function.
-April shoots an arrow upward into the air at a speed of 32 feet per second from a platform that is 23 feet high. The height of the arrow is given by the function $h ( t ) = - 16 t ^ { 2 } + 32 t + 23$ , where $t$ is the time is seconds. What is the maximum height of the arrow?

A) $16 \mathrm { ft }$
B) $23 \mathrm { ft }$
C) $22 \mathrm { ft }$
D) $39 \mathrm { ft }$