Which graph represents exponential decay? On a coordinate plane, a straight line has a negative slope. On a coordinate plane, a curve approaches y = 0 in quadrant 2 and curves up in quadrant 1. On a coordinate plane, a straight line has a positive slope. On a coordinate plane, a curve approaches y = 0 in quadrant 1 and curves up in quadrant 2.

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42