Sketch the graph of the function: (a). f(x, y)=x² +4y? (level curve = 0, 2, 4, (b). f(x, y)=x² + y² +3 (level curve = 3, 4, 5, (c). f(x, y) = 19-x-y? (level curve = 0, 1, 2, 3)

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answer: plz mark me brainliest

7 hours, 0 minutes, 0 seconds

or:  

0.04

total weeks

or:  

0.29

total days

or:  

7.00

total hours

or:  

420.00

total minutes

or:  

25,200.00

total seconds

step-by-step explanation:

x< -17/2 hope this