exam Maths Puzzle Numerical Ability

Please help and solve this graph for me. y=-x^2-2x

x;-3 -2 -1 0 1
y;

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I think that I have to see if x1 and x has a solution and x2 and x have a solution and if they do the x is an element of span(x1,x2) A bakey sells 50 loaves a day of a particular bread at $1.50 a loaf. Research indicates that, for every 10 cents increase in the price, two fewer loaves would be sold. An equation