The x-value is 3. Coordinate pairs are labeled as (x, y). In this case, the 3 is in the x position.
The point is located in the 4th quadrant. Quadrant labels move counter-clockwise, from 1 to 4 as shown below. In Quadrant 4, the x-value will always be positive, and the y-value will always be negative. This point has a positive x-value and negative y-value, so it is in this quadrant.
The volume of a rectangular pyramid = 1/3 ×Area×height =1/3×L×W×H if the dimensions were doubled therefore, V=1/3 × (9×2)×(14×2)×(10×2) =1/3×18×28×20 =3360 cubic centimetres