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Rate of change:

$\"\"$

Substitute $\"\"$ in rate of change formula.

$\"\"$

$\"\"$ (Produvt of two same signs is positive)

$\"\"$ (Subtract: 2 + 4 = 6)

$\"\"$ (Additive identity property: a + 0 = a) \ \

$\"\"$ (Divide: $\"\"$ ) $\"\"$

The rate of change represented in the graph is $\"\"$ .