14) A parallelogram in which all the sides are equal and each angle measures 90° is called a
A) square
B) rectangle
C) rhombus
D) trapezoid

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

I'm confused on this could anyone me and show me what i need to do to solve it.