A range check is often used when a person works with data consisting of numbers, dates and times, or currency, ensuring that a number is within a specific range.
Explanation:
- Range checks allow a person to set suitable boundaries.
- An example of a range check is checking to see if the value of a 16-bit integer is within the capacity of a 16-bit integer. When a range check is performed, upper and lower boundaries are specified.
- Range check is a validation check which can be applied to numeric fields. This is done to ensure that only numbers within a certain domain can be entered into a field. Remember that this does not necessarily mean that the data entered will be correct. But it will certainly lie within reasonable limits.
- A method of validation which checks that data falls between an upper and lower acceptable value.
- This validation check which can be applied to numeric fields. This is done to ensure that only numbers within a certain domain can be entered into a field. Remember that this does not necessarily mean that the data entered will be correct. But it will certainly lie within reasonable limits.
Answer:

Explanation:
d(x) = -2x - 6
to find the inverse of a function, you need to follow these steps:
1. set d(x) = y
2. interchange the variables, so y becomes x and x becomes y
3. solve the equation for y
<u>step 1:</u> set d(x) = y
y = -2x -6
<u>step 2:</u> interchanging the variables
y = -2x - 6 turns into x = -2y - 6
<u>step 3:</u> solving for y
x = -2y - 6 < add 6 to both sides to get rid of it on the right
x + 6 = -2y < divide both sides by -2 to get y alone
x + 6 / -2 = 
-2y / -2 = y
= y
so the inverse of the function is 
Answer: Instance
Explanation: Instance is the term found in the object-orient programming concept. It is used for the realization of the variation present in any object specifically.The program execution at each time instant is known as the instance of program. Generation of realized instance is known as instantiation.
This helps in the accessing of the object in the program.Other options are incorrect entry , target and handle are not the technical term related with the accessing of object .Thus the correct answer is instance.