Draw the level curves and the graph of the following functions: f: R2 - R 1. f (x, y) = x + y - 2 2. f (x, y) = x2 + 4y2 3. f (x. y) = -xy2

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Q: a. Domain b. Range c. f(-2) d. f(4) e. x-values where f(x)= -2 f. x-intercepts and y-intercepts

A: We can easily find these values from the given graph