I don’t understand this question on my homework please help

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x? y? z? , with vertices x? (4, -2), y? (4, -3), and z? (1, -4). the type of transformation that triangle xyz undergoes is a . triangle x? y? z? then undergoes a transformation to form triangle x? y? z? , with vertices x? (4, 2), y? (4, 3), and z? (1, 4). the type of transformation that triangle x? y? z? undergoes is a .