Which functions have a positive rate of change and which have a negative rate of change? column a column b ab 1. 2x + 3y = −9 ab 2. y = 3x − 6 ab 3. x y −1 9 0 7 1 5 ab 4. x y 2 −8 3 −7 4 −6 a. positive b. negative

Identify one charcteristic of exponential growth

Line segment eg is partitioned by point f in the ratio 1: 1. point e is at e (0, 4), and point f is at (1, 3). what are the coordinates of point g? (−1, 5) (2, 2) (3, 1) (4, 0)

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.