Answer: The domain of f(x) is all real numbers, and range of f(x) is .
Explanation:
The given function is,
The domain is the set of all possible values for which the value of function exist.
The given function is defined for any real value of x, therefore the domain of the function is set of all real number. it can be written in interval notation .
The range is the set of possible value of f(x) at different value of x. Range is the set of outputs.
In the given function,
for any value of x.
So,
Therefore the value of f(x) is always greater than 2 and the range of the function is .
If we take 54 to be the reduced price, and "x" to be the original price, now "x" is the 100%, and 54 is the 100% - 10%, or 90%.
Answer:
Option 5. Insufficient information
Step-by-step explanation:
Since the pool is in the form of a rectangle. Therefore opposite sides of the pool are equal.
Let the length of the pool be x and width of the pool is y feet.
Jan wants to swim across the diagonal of the pool therefore length of the diagonal will be = √x² + y²
perimeter of the pool is 16 feet
2(x + y) = 160 feet.
Now to get the length of the diagonal we should know at least one side of the pool.
Therefore information is insufficient for the calculation.
Option 5 is correct.