James graphed the line shown. Then he drew a second line through the point (6.-7) so that the lines formed a right angle. What are the equations of the lines James graphed?
4
X
-4
2
4
2
O A. y = 2x + 3 and y = 2x – 19
О. В.
y = -
3x + 3 and y = - *x - 4
y = 2x + 3 and y = - 3x – 4
0 C
OD
y
2. – 4 and y =
1 x +3

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)