When two lines intersect to form two angles, what conjecture can you make about the pairs of angles that are next to each other?

Which of the following represents the range of the graph of f(x) 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? by using compass take the measures of angle and draw the same arc according to it.

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?