Use linear approximation, i.e. the tangent line, to approximate25.4(square root) as follows:

Letf(x)=x

Find the equation of the tangent line tof(x)atx=25

L(x)=__________________________

Using this, we find our approximation for25.4 (square root) is __________________

NOTE: For this part, give your answer to at least 9 significant figures or use an expression to give the exact answer.