If y = 9x − 7, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs? a) {(0, −7), (1, 2), (−1, −16)} b) {(−7, 0), (2, 1), (−16, −1)} c) {(1, 9), (2, 7), (3, 16)} d) {(7, 9), (8, 10), (9, 11)}

Multiplying an even number of negative numbers gives an answer that is choose from:

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling