A particle travels along the x-axis such that its position at time t is given by the function x(t) = 2€ + t. What is the average speed of this particle over the interval 2 sts 10?

4

25

32

200

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis