Question

If h is a function and -7 is an element in its domain, which of the following statements correctly describes the expression h(−7)?

A. h(−7) is undefined.
B. h(−7) is a negative value.
C. h(−7) is a positive value.
D. h(−7) is equal to 7.

Answer 1

The expression h(−7) is undefined.

Step-by-step explanation:

The correct answer is A. h(−7) is undefined.

When -7 is an element in the domain of a function, it means that the function does not have a value or output for -7. This is because the function is not defined or does not exist at -7.

For example, let's say we have a function h(x) = x + 3. When we substitute -7 into the function, we get h(-7) = -7 + 3 = -4. However, if the function does not have any rule or expression for -7, then h(-7) is undefined.