The blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle. a) the coordinates switch positions. b) the signs of the coordinates change. c) the sign of the x-coordinate changes. d) the coordinates switch positions and the signs change.

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

The parabola opens: y=√x-4 (principal square root) up down right left

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1