Here is a table of values for y = f(x). x -2 -1 0 1 2 3 4 5 6 f(x) 5 6 7 8 9 10 11 12 13 Mark the statements that are true. A. The range for f(x) is all real numbers. B. The domain for f(x) is the set {-2, -1, 0, 1, 2, 3, 4, 5, 6}. C. f(5) = -2 D. f(-1) = 6 please explain why which ones are true
The domain is the given values of x
F(-1) is the value of f when x = -1
- so you read of f(-1) and f(5) directly from the list
The range of the function is the given values of f(x)
so which answers are true ?
Reread what @welshfella wrote, and try to understand each statement. Apply what he said to the appropriate answer choice to determine if each answer choice is correct or not. If you still have doubts, double check here: http://www.purplemath.com/modules/fcns2.htm
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