Connor and Pilar are in a rock-climbing club. They are climbing down a canyon wall. Connor starts from a cliff that is 200 feet above the canyon floor and climbs down at an average speed of 10 feet per minute. Pilar climbs down the canyon wall as shown in the table. Time in minutes 0 1 2 3
Pilar's height (feet) 242 234 226 218

Part A: Who is descending (going down) faster per minute? How much faster is that person going?

Part B: Write a function to model Pilar's descent as shown in the table. Identify the rate of change and the initial value.

Part C: Will there be anytime that Connor and Pilar will meet on their way down? Explain your reasoning.

Part D: Lydia is also a member of the rock-climbing club. The graph represents her descent. Does this graph represent a linear or non-linear function? Justify your answer with information from the graph.