Word+problems+Set+6

Create a word problem in which your classmate is given a rate of change and an initial value. You need to have your classmate give the equation and then use the equation to predict a) an output value, given an input value, and b) an input value, given an output value.

Create a word problem in which your classmate is given two ordered pairs that are related linearly. Ask probing questions, such as "what is the unit on the rate of change" and perhaps after he/she has found the equation, "what is the significance of the x-intercept" or "what is the significance of the y-intercept". Also ask him/her to predict an output value, given an input value.

Jack-A hose used by a fire department shoots water out in a parabolic arc, using the quadratic function y=-.016x²+.5x=4.5. Let x=the horizontal distance and y= the corresponding height of the stream of water. At what distance does the arc reach its maximum height?