(1) According to the meaning of the question, we get y=(23-20)x+(35-30)(450-x),
That is, y=-2x+2250,< /p>
The value range of the independent variable x is 0≤x≤450 and x is an integer;
(2) From the meaning of the question, we get 20x+30 (450-x)≤10000,
The solution is x≥350,
From (1), we get 350≤x≤450,
∵y decreases as x increases,< /p>
∴When x=350, the y value is the largest, and the maximum y=-2×352250=1550,
∴450-350=100.
Answer: To make the most profit every day, the company should produce 350 sheep dolls and 100 wolf dolls every day.