This graph represents a function.

a. true
b. false

( with photo )

To see if a graph is a function you must do the vertical line test. This test is passed when a vertical (up and down) line is placed anywhere on the graph and the graph only crosses the line once. This graph does not pass the vertical line test, and therefore is not a function.

Hope this helped! Let me know if there is anything I need to clarify or explain more in depth!

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq