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danquanc958719
01.07.2019 •
Mathematics
Question: consider the domain (d) and rule of each function. determine the range of the function. 1. d = {0, 1, 2, 3}; f(x) = 3x − 5 2. d = {−1, 0, 1}: f(x) = 1 − x2 3. d = { −2, −1, 0, 1}: f(x) = x2 + x − 2 4. d = {0, 1, 2, 3}; f(x) = 3 − 2x
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Ответ:
For every function you need evaluate the function for every value in the domain D. And the collection of this values correspond to the range of the function.
1.![D = \{0,1,2,3 \}, R = \{f(0), f(1), f(2), f(3) \} = \{-5, -2, 1, 4 \}.](/tpl/images/0037/2434/8a5b5.png)
2.![D = \{-1,0,1 \}; R= \{f(-1), f(0), f(1)\} = \{0, 1, 0 \} = \{0,1\}](/tpl/images/0037/2434/b575d.png)
3.![D = \{-2,-1,0,1 \}; R = \{f(-2), f(-1), f(0), f(1) \} = \{0, -2, -2, 0 \} = \{-2,0\}](/tpl/images/0037/2434/1f0dd.png)
4.![D = \{0,1,2,3 \}; R =\{f(0), f(1), f(2), f(3) \} = \{3, 1, -1, -3 \}](/tpl/images/0037/2434/c619e.png)
Ответ:
80-32=48
Checking
16 (7)=48