a particle moves on the hyperbola xy=15 for time t≥0 seconds. at a certain instant, x=3 and dxdt=6. which of the following is true about y at this instant?

When you look at the data about all of the children in your setting, you can learn a. about child development. b. how well each individual child is performing. c. what outside factors you need to change. d. how effective your instruction and environment are.