<p>Question: Use linearization to approximate the value of √(9.1) + 9.1 using the function g(x)=√(x) + x by finding the tangent line to the function at x=9. </p>
<p>So I got the tangent line: y=7/6x + 3/2
Not sure how to proceed from there.</p>
<p>Once you’ve got the tangent line, plug in 9.1 for x. :)</p>