The domain would be: all reall numbers.
The domain is which 'X' values you can insert into 'X' and get a value for 'Y'.
Since any real number could be inserted to create a 'Y' value, the answer is:all real numbers.
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The answer depends on the domain. If the domain is the whole of the real numbers, the range in y ≥ 1. However, you can choose to have the domain as [1, 2] in which case the range will be [2, 5]. If you choose another domain you will get another range.
x = the domain y = the co-domain and range is the output or something e_e
y is 12
y = 4(2x) is an exponential function. Domain: (-∞, ∞) Range: (0, ∞) Horizontal asymptote: x-axis or y = 0 The graph cuts the y-axis at (0, 4)
The domain of a function is the set of it's possible x values that will make the function work and output y values. In this case, it would be all the real numbers.