Final answer:
By using the provided scale factor of 2, we multiply the side length of the first square by 2 to find that the length of JP is 8 inches.
Step-by-step explanation:
To find the length of JP, we must consider the information given about the dimensions of the larger square. Since the problem states that the dimensions of the larger square are twice that of the first square, we know there is a scale factor of 2 involved in the sizing of the squares. Thus, if the side length of the first square is 4 inches, the side length of the larger square would be 4 inches × 2 = 8 inches.