Extra Review Chapter 7 (Area, Volume, Distance)
Given that is the region bounded by Find the following Area of Volume by revolving around the x-axis Volume by revolving around the line Volume by revolving around the y-axis Volume of cross sections perpendicular to the x- axis with as the base using equilateral triangles
Graph (1, 3) (4, 9)
Area
x-axis (Washer)
y = 2 (Washer)
y – axis (Shell)
Cross Section with Eq. Triangles
Distance… Sally rides her scooter along a straight road from home to the mall, starting at home at time t=0 minutes and arriving at the mall at time t=20 minutes. During the time interval, minutes, her velocity, in miles per minute, is modeled by the piecewise linear function whose graph is shown on the next slide.
Sally’s Visual
Another Distance – with Calculator A particle moves along a straight line with its velocity given by Find the total distance traveled during the first 5 seconds When does the particle change directions?