How do I solve this problem? I don't understand linearization.

ning: Linear Approximation of stion Use the linearization of f(x) = at 8 to to estimate: 7.994 3 a) What is the slope of the tangent line of f(r) = - when r = 8? The slope is: b) Find the linearization of f at 8. In other words, find the equation of the tangent line for f(x) = Later - 8. L(I) = The feedback must read."The variables found in your answer were: [x]" otherwise your grade will be 0 for this part. c) Use the tangent line to find the estimate of 7.994 3 L(8 - 6 1000 The estimation is: 1 7.994 3