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1 of 8 0-day streak

Infer primitive curves from a gradient function

Question 1 of 8

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Translate gradient signs into the direction and stationary features of a primitive

\[F'(x)=g(x)=-2x+4\]

The functions are defined for all real x. Report open sign intervals split at every zero of g, including a repeated zero. Positive g means F is increasing; negative g means F is decreasing

No function value is supplied, so its vertical translation is undetermined

(a)2 marks

Enter +1 for positive g (F increasing) or −1 for negative g (F decreasing), on each open interval. Infinity labels describe unbounded intervals

(b)1 mark

Classify the stationary point of F at x = 2

(c)1 mark

Select the complete family of primitives. C is an arbitrary real constant

(d)1 mark

What is the degree of the primitive polynomial?