


2. (20pt.) Let f(x, y) 2 (a) draw and describe the level curves of f of value c= 0,1,2,4 (b) sketch the graph of f (r.y) 2. (20pt.) Let f(x, y) 2 (a) draw and describe the level curves of f...
7 Olet f(x,y)= -(--) Cy-x)+2 a) sketch flx,y) b) Draw the level curves f(x, y) = for t=2, 10, 1-2 08 c) Compute f (33) what point represents this computations, what are the signs (²) of fx (3,3), ty (3,3), +*x (3,3), toy (3,3)? point part b) ? a d) Without and
Let f(x, y) = x(x – 1) + y2. (a) [1 point] Sketch the level curves of f. (b) [2 points] Compute the gradient of f, and sketch it as a vector field. (c) [3 points) Find all critical values of f and classify them as local maxima, local minima, or saddle points.
2. For f(x.y)-9-9x2-y'* a. Sketch the surface z-f(x,y) b. Sketch at least 3 level curves (label each one with its function value)
2. For f(x.y)-9-9x2-y'* a. Sketch the surface z-f(x,y) b. Sketch at least 3 level curves (label each one with its function value)
5) The level curves of a function f(x,y) are given in the graph below. 2 X -1 -2 i Estimate f(3,3) ii Estimate Vf(-3, 1) Let u be a unit vector parallel to (1,4). Calculate Daf using your answer from i iv) Find the location of all critical points of the function f, on the set -5 <r< of these is a saddle point) iii) Let D be the domain bounded between the curves y = x and y= 2...
8. (b) Sketch the graph of f(x,y) = 1 - x2 - y2. Sketch the level curves of f(x,y,z) = k for f(x,y,z) = 2x - 3y + z-12, with k=0, 24, -12. - 22. 22
1. Consider the function. (a) Draw the level curves of this function for levels c = 0, 1, 2. Please clearly label each level curve with the appropriate value of c. (b) Use the previous answer to sketch the graph (c) Find all first and second order derivatives of this function. (Please label all your derivatives clearly.) (d) Find the equation of the tangent plane to 2.. Let (a) Show that does not exist. (b) Show that does exist and...
2. Consider the surface -v 9-2r2-r : f(x, y) z (a) What is the domain and range of f? (b) Sketch the level curves for 2-f(r,y) -0,-3,-2V2,-v5 (c) Sketch the cross sections of the surface in the r-2 plane and in the y-z plane (d) Find any z, y and z intercepts Use the above information to identify and sketch the surface.
2. Consider the surface -v 9-2r2-r : f(x, y) z (a) What is the domain and range of...
1. Sketch a few of the level curves of the function f(x, y) = surface z = y2 and then use these to graph the f (x, y) 2. Evaluate the following limits if they exist. If they don't, explain why not. (a lim (x,y)(0,0) + 4y2 x4-y4 (b lim (x,y)(0,0) x2 + y2 cos 2 y2) - 1 lim (c (z,y)(0,0 2ry (x, y)(0,0) Is the function f(x, y) continuous at (0,0)? 3 = (х, у) — (0,0) 2x2y...
13) Consider the function f(, y)-4x2 +y a) Sketch a graph of level curves for fox.y)-4,8 and 16 (they should be ellipses) in xa-plare b) Calculate the gradient of f at the point (1,2). c) Find a direction (expressed as a unit vector) for which the directional derivative at the point (1,2) is 0.
13) Consider the function f(, y)-4x2 +y a) Sketch a graph of level curves for fox.y)-4,8 and 16 (they should be ellipses) in xa-plare b) Calculate...
(This type of math is Multivariable Calculus 1) 7. Sketch the level curves of f(x, y) = p 16 − x 2 − y 2 for levels c = 0, 1, 2, 3, 4. Can you describe the surface? 17. An ideal fluid flow is modeled with the velocity potential ϕ = 4x−3y and stream function ψ = 3x + 4y. Sketch some streamlines for this flow. Can you describe this flow in a sentence or two?