exam Maths Puzzle Numerical Ability

Find the corresponding y values for x = -4, -3, -2, -1, 0, 1, 2 if y=x^2+2x-3.
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exam Other Question

At the beginning of each year for 5 years, Cindy invests in a mutual fund with an average annual return of ‘r’. The first year she invests $10, the second year $20, the third year State the domain of the rational expression in the set builder notation.
6x^2-11x+3/4x^2-12x+9