Answer:
<u>Domain</u>: input values (x-values)
<u>Range</u>: output values (y-values)
<u>Increasing function</u>: the average rate of change is positive
<u>Decreasing function</u>: the average rate of change is negative
<u>Constant function</u>: y-values do not vary, regardless of x-values
<h3><u>Graph 1</u></h3>
From inspection of the graph, 2 squares = 1 unit.
Domain: [-2, 3]
Range: [-2, 2]
Increasing function: (-2, 0)
Decreasing function: (0, 3)
<h3><u>Graph 2</u></h3>
From inspection of the graph, 2 squares = 1 unit.
Domain: [-2, 3]
Range: [-2.5, 2]
Increasing function: (-2, -1) ∪ (1.5, 3)
Decreasing function: (-1, 1.5)
<h3><u>Graph 3</u></h3>
From inspection of the graph, 2 squares = 1 unit.
Domain: [-2, 3]
Range: [-1, 2]
Increasing function: (-2, -1)
Constant: (-1, 1)
Decreasing function: (1, 3)
4 / 10 = 0.4