Write as a Function of y y = square root of x-4

Problem

y=√(,x−4)

Solution

1. Identify the goal, which is to solve the given equation for x so that x is expressed as a function of y

2. Square both sides of the equation to eliminate the square root on the right side.

y2=(√(,x−4))2

3. Simplify the right side of the equation.

y2=x−4

4. Isolate the variable x by adding 4 to both sides of the equation.

y2+4=x

5. Rewrite the equation in the standard form where x is on the left side.

x=y2+4

Final Answer

x=y2+4

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