Consider function f. 12 +63 + 36, I < -2
f(x) =
41 – 15,
- 2 < x <4
I > 4
Are the statements about the graph of function ftrue or false?
true
false
true
false
The graph crosses the y-axis at (0,–15).
The graph has a point of discontinuity at x = -2.
The graph is increasing over the interval (4,0).
The graph is decreasing over the interval (-12, -2).
true
false
true
false
The domain of the function is all real numbers.
true
false
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