Correct answer only ! the items labeled 6 are examples of what part of a graph? a. data points b. tick marks c. independent variables d. trend lines ( best fit line )

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?