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.