Is the relation a function? {(14, 15), (5, 7), (3, 10), (11, 1), (5, 8)} A. yes B. no

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Line l passes through points (0,4) and (3,6) what is the slope of a line that is parallel to line l -2/3 -3/2 2/3 3/2

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.