Find the value of x in the following parallelogram

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3

Which best explains why this triangle is or is not a right triangle ?

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking