A scientist created a scatter plot to represent the heights of four plants over time. Then, she found a line of best-fit to model
the height in centimeters of each plant after x days. The equations of each trend line are given in the table.
Trend Line Equations
Plant
Equation of trend
line
y = 2x+1
y = 1 x + 3
According to the trend line equations, which plants are growing at the same rate per day?
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