Find the domain of the function.
f(x) = -2x + 4
A. (-∞, 0) u(0, ∞)
B. (-∞, ∞)
C. [-4, ∞)
D. (0, ∞)
I think it is B but i can't be sure!
Oh, sorry, I'm not a math/calculus tutor. Can't help you. Someone else will, I'm sure.
If B stands for any real number, then you are correct
(-∞, ∞)
Is this right?
yes - all polynomials have that domain. They are defined for any real number.
To find the domain of a function, we need to determine the set of all possible values for the input variable (x) that will not result in any issues such as division by zero or taking the square root of a negative number.
In the given function, f(x) = -2x + 4, there does not seem to be any restrictions or limitations on the input variable x. It is a linear function, meaning it is defined for all real numbers.
Therefore, the correct answer would be:
B. (-∞, ∞)
The function is defined for all real numbers.