(2, 20) (7, 20) 20 (16, 10) 10. (18, 10) 8 10 12 14 16 18 6. -10- (10, –10) (14, –10) Graph of v 4. A squirrel starts at building A at time 1 = 0 and travels along a straight, horizontal wire...

Extracted text: (2, 20) (7, 20) 20 (16, 10) 10. (18, 10) 8 10 12 14 16 18 6. -10- (10, –10) (14, –10) Graph of v 4. A squirrel starts at building A at time 1 = 0 and travels along a straight, horizontal wire connected to building B. For 0 sIS 18, the squirrel's velocity is modeled by the piecewise-linear function defined by the graph above. (a) At what times in the interval 0 < 1="">< 18,="" if="" any,="" does="" the="" squirrel="" change="" direction?="" give="" a="" reason="" for="" your="" answer.="" (b)="" at="" what="" time="" in="" the="" interval="" 0="">< 1="" s="" 18="" is="" the="" squirrel="" farthest="" from="" building="" a="" how="" far="" from="" building="" a="" is="" the="" squirrel="" at="" that="" time?="" (c)="" find="" the="" total="" distance="" the="" squirrel="" travels="" during="" the="" time="" interval="" 0="">< 1="" s="" 18.="" (d)="" write="" expressions="" for="" the="" squirrel's="" acceleration="" a(t),="" velocity="" v(1),="" and="" distance="" x(1)="" from="" building="" a="" that="" are="" valid="" for="" the="" time="" interval="" 7="">< t=""><>