The linear approximation of a function is useful only if the change in x is small. Illustrate this fact by approximating $\sqrt { 18 }$ by regarding 18 to be "near" 36 instead of 16.

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The Answer of The linear approximation of a function is useful only if the change in x is small. Illustrate this fact by approximating $\sqrt { 18 }$ by regarding 18 to be "near" 36 instead of 16.

The Linear Approximation of a Function Is Useful Only If 18\sqrt { 18 }18​

The Linear Approximation of a Function Is Useful Only If $\sqrt { 18 }$