Answer:
0.5
Step-by-step explanation:
We are looking for how much height is gained per cup added.
Height per cup added can be calculated by finding the slope of the line that runs through the two given points on the graph, (3, 5.5) and (8, 8).
Formula for slope =
Let,
-2x^4 + 10x^3 - 21x^2 + 19x - 4
that should be the right answer
6 times 1/5 (which is also 0.2) is greater than 1