Answer:
[2 , ∞)
Step-by-step explanation:
y = sqrt( x-2)
The domain is the values that x can take
Since we have a square root
Domain: [2 , ∞) since the square root must be greater than or equal to zero
The range is the values that y can take
The square root starts at 0 and increases
Range [0,∞)
The inverse swaps the domain and range
Range: [2 , ∞)
Domain [0,∞)
Solving the expression
we get -2.
Comparing the solution with the one given, you can find the errors.
Step-by-step explanation:
We need to simplify
and identify errors.
Since the steps are not shown, so we cannot identify errors but I can solve the expression and you can compare to find errors.
Simplifying:

Using algebraic rule: if one digit has positive (+) sign and other digit has negative (-) sign then we will perform subtraction. and after subtraction, the sign of bigger value will be the sign of result.
Using the rule and solving:





Solving the expression
we get -2
Comparing the solution with the one given, you can find the errors.
Keywords: Simplifying expressions
Learn more about Simplifying expressions at:
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Answer:
Step-by-step explanation:
The absolute value of the difference of x and y is represented by subtracting y from x and taking the absolute value of the entire expression; the correct answer is |x - y| > 5.
The solution x=1/5 is a solution to the first option.
5*1/5=1
hope this helps!