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Based on the graph above, estimate to one decimal place the average rate of change from `x=1` to `x=5`
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Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
`-0.8660255`