Question

The graph below represents the total shipping cost of x items for four different companies.

Shipping Charges
A graph has number of items on the x-axis and shipping cost in dollars on the y-axis. Line W goes through points (0, 5) and (2, 13). Line U goes through (0, 12) and (3, 16). Line Y goes through (0, 10) and (2, 12). Line Z goes through (0, 0) and (2, 4).

Which list places the companies in order from the steepest slope to the least steep slope?
W, Z, U, Y
U, Y, W, Z
W, Z, Y, U
U, Y, Z, W

Answer 1

Compute each line's slope (rise/run):

- W: (13−5)/(2−0) = 8/2 = 4
- Z: (4−0)/(2−0) = 4/2 = 2
- U: (16−12)/(3−0) = 4/3 ≈ 1.33
- Y: (12−10)/(2−0) = 2/2 = 1

From steepest to least: W, Z, U, Y.