12. Why is the following NOT a function?(7,5) (3,5) (0,-2) (7,4) (8,-2)
1 answer:
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Answer:
a = 14
Step-by-step explanation:
The mean is the sum of the values divided by the number of values.
The equation of the piecewise function is
On the graph, we have:
- y = 3 for all x values not more than -1
- y = -1 for all values greater than 2
Hence, the piecewise function is:
This is the set of input values
In (a), we have:
x ≤ -1 and x > 2
Hence, the domain is (∞, 3] u (2, ∞)
<h3>The range of the function</h3>This is the set of output values
In (a), we have:
f(x) = 3 and f(x) -1
Hence, the range is [3] u (-1)
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