Which set of coordinates represents a function?
(0,5) (0,0) (1,1) (-2,4)
(1,10) (3,3) (1,2) (-1,1)
(2,15) (3,-3) (1,3) (0,0)
(3,20) (5,5) (1,4) (-1,-1)
(4,25) (5,-5) (1,5) (-2,-4)

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

What is the output, or dependent variable of quantity? 1: x 2: f(x) 3: y