Match each function with its corresponding graph

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.