### Home > CALC > Chapter Ch2 > Lesson 2.3.3 > Problem 2-127

2-127.

Pay attention to variance in the slope of the graph.

When does the fastest growth of the plant occur?

Estimate the slope of the secant line at *t* = 3.

The average rate of growth is the slope of the secant line between *t* = 0 and *t* = 5.