Explain why the function is differentiable at the given point. f(x, y) = 4 + x ln(xy − 9), (5, 2) the partial derivatives are fx(x, y) = correct: your answer is correct. and fy(x, y) = correct: your answer is correct. , so fx(5, 2) = 10 correct: your answer is correct. and fy(5, 2) = 25 correct: your answer is correct. both fx and fy are continuous functions for xy > incorrect: your answer is incorrect. and f is differentiable at (5, 2). find the linearization l(x, y) of f(x, y) at (5, 2). l(x, y) =

.bjbjk.b,j.l.

step-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll