physics problem in mcq ...

[sabasi]

In may/june 2010/12 question 09 they said in the examiner report to take gradient but after taking gradient the answer is .67 though in mark scheme tyhe right answer is 1.3,please i am not understanding,any help would be appreciable ......

 

[CaptainDanger]

Tangent at 3. Then take the gradient of the line.

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[sabasi]

Tangent at 3. Then take the gradient of the line.

View attachment 28794​

Thanks yoy very much ,may Allah bless you