Question

theres a roughly linear relationship between the length of someones femur (the long leg - bone in your thigh) and their expected height, as expressed in the graph below. what does the slope of the line represent?
answer
the femur length for someone with an expected height of 2.3 centimeters.
the change in expected femur length for every one additional centimeter of height.
the change in expected height for every one additional centimeter of femur length.
the femur length for someone with an expected height of 50 centimeters.

Explanation:

The slope of a line in a linear - relationship graph is defined as the change in the y - variable (in this case, expected height) for a unit change in the x - variable (femur length).

Answer:

The change in expected height for every one additional centimeter of femur length.