7. [0/2 Points] DETAILS PREVIOUS ANSWERS TANAPCALCBR10 3.7.009. MY NOTES ASK YOUR TEACHER PRACTICE ANC Let y = f(x), where f ( x) = x+. 4 Find the differential of the function. + - dy = X X Check which variable(s) should be in your answer. Need Help? Read It Watch It Vo O! Submit Answer 8. [-/2 Points] DETAILS TANAPCALCBR10 3.7.016. MY NOTES ASK YOUR TEA Let f be the function defined as follows. y = f(x) = 3x2 - 3x+4 (a) Find the differential of f. dy = (b) Use your result from part (a) to find the approximate change in y if x changes from 2 to 1.97. (Round your answer to two decimal places.) dy = (c) Find the actual change in y if x changes from 2 to 1.97 and compare your result with that obtained in part (b). (Round your answer to two decimal places.) Ay = Need Help? Read It Watch It