# Chapter 10 - Radical Expressions and Equations - 10-5 Graphing Square Root Functions - Practice and Problem-Solving Exercises: 12

$x \geq \frac{13}{4}$

#### Work Step by Step

You can not take the square root of a negative number. Therefore, $4x - 13$ must be greater than or equal to 0. $4x - 13 \geq 0$ We add 13 to both sides $4x - 13 + 13 \geq 0 + 13$ $4x \geq 13$ We divide four from both sides $x \geq \frac{13}{4}$

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