Help!

Write an equation for the line on the graph below:

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?

Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?

Which of the following statements must be true about this diagram? check all that apply. x°, y°, z°, & w°