Problem

Find the domain of the function f(x)=2x+3

Answer

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Answer

We then divide both sides by 2 to solve for x, which gives us: x≥−32

Steps

Step 1 ：The value under the square root (radicand), 2x+3, must be greater than or equal to zero. Therefore, we set up the inequality as follows: 2x+3≥0.

Step 2 ：To solve for x, we first subtract 3 from both sides of the inequality to get: 2x≥−3

Step 3 ：We then divide both sides by 2 to solve for x, which gives us: x≥−32

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