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- 4. Do you agree with the statement that “ cubic functions must have at least 1x-intercept but not more than 3, whereas quadratic functions may or may not have x-intercepts.Provide evidence to support your position.Define the formula for a parabola (a quadratic function) that has horizontal intercepts (roots) at x=6.1 and x=1.4 and passes through the point (0,3.3).#7. Find a general form of an equation of the line through the point A thatsatisfies the given condition