ABCD is rotated about the origin. The image after the rotation is A'B'C'D. What is the rule for this rotation?
R0, 45°
R0, 90°
R0, 180°
R0, 270°

X-intercept=-5 y-intercept=2 the equation of the line is

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)