What is the quadratic formula for solving equations of the form ax² + bx + c = 0?
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What is the variance of the numbers 3, 8, 11, 15, 22?
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What are the characteristics of the cubic function f(x) = x^3? Is it odd or even? Is the graph concave up or down? Does it intersect the x-axis at the origin? Does it have a turning point? What are the domain and range of the function?