[C2] 6. a) What does it mean if the derivative of a function is always positive?...

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[C2] 6. a) What does it mean if the derivative of a function is always positive? b) Write an equation of a nonlinear function whose derivative is always positive. 7. Show that there is no value of x for which f(x) = -and g(x) = -x5 have tangents with the same slope. [C2] 6. a) What does it mean if the derivative of a function is always positive? b) Write an equation of a nonlinear function whose derivative is always positive. 7. Show that there is no value of x for which f(x) = -and g(x) = -x5 have tangents with the same slope.