Find the linearization of y = 4 − 2x2 at (1, 2). Then, use it to approximate y when x = 1.15. Homework Help ✎
Recall that you first investigated local linearization by using your calculator to 'zoom in' on a coordinate point until the curvy function appeared to be linear. You then found the equation of that 'line' using two points. You now have a better strategy.
Find the equation of the tangent line at (1, 2) then evaluate x = 1.15.