Two rays sharing a common endpoint is the definition of which term?

When only separate discreet points are graphed it is called?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Alogical argument that is presented in graphical form using boxes and arrows is called?