Graph the parabola.
y=x^2-4x+2

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Vertex:  

(2,−2)

Focus:  

(2,−74)

Axis of Symmetry:  

x=2

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.