Mathematics, 07.05.2020 01:57 a6igai1

The height a plant grows is dependent on the amount of fertilizer given to the plant. The table below shows the amount of fertilizer a plant gets and the height the plant grows.

Fertilizer and Height of Plant
Fertilizer (oz)
Height of Plant
(in.)
175
50
192
58
130
36
128
35
184
56

Nina graphs the data in the table and writes the rounded values for a and b as shown below for the regression line y = a x + b.

a = 0.36. b = negative 10.5.

Which explains how the fertilizer affects the growth of the plant?
The trend line is y = 0.36 x minus 10.5, which means that the rate of change in height is 0.36 inches per ounce of fertilizer.
The trend line is y = 0.36 x minus 10.5, which means that the rate of change in height is 10.5 inches per ounce of fertilizer.
The trend line is y = negative 10.5 x + 0.36, which means that the rate of change in height is 0.36 inches per ounce of fertilizer.
The trend line is y = negative 10.5 x + 0.36, which means that the rate of change in height is 10.5 inches per ounce of fertilizer.

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