The graph at the right shows a function, f, graphed on the domain 0 x 8.
The section from A to B is a straight segment.
The section from B to C is represented by y = (x - 5)².
1. Find the slope of the segment from A to B.
2. Find the x-coordinate of the relative minimum value of the graph from B to C.
3. Find the value of f (3) + f (4) + f (6) + f (7).
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Find the sum of your answers multiplied by the square of 30.
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