Alec calculated the slope of line AC between points A and B. Avis calculated the slope of line AC between points B and C. Both Alec and Avis drew triangles, as shown below, to calculate the slopes: A graph shows numbers from 0 to 18 on the x axis at increments of 2 and the numbers 0 to 6 on the y axis at increments of 1. A line AC is drawn that joins the ordered pairs 0, 0 and 18, 6.The ordered pair 6, 2 is labeled as B. A right triangle is drawn with AB as hypotenuse and height 2 units. Another right triangle is drawn with BC as the hypotenuse and height 4 units.

Which statement is correct about the slopes calculated by Alec and Avis if both calculated the slopes accurately?

Both calculated the slope as 3.
Both calculated the slope as 1 over 3.
Alec calculated the slope as 1 over 3 and Avis calculated it as 3.
Alec calculated the slope as 3 and Avis calculated it as1 over 3.