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C1 - Finding gradient of two points on a curve Watch

1. Questionn 6ii)

http://www.ocr.org.uk/Images/59551-q...hematics-1.pdf

I thought the y2 - y1 / x2 - x1

method can only be used when finding the gradient of two points on a straight-line?
2. (Original post by IShouldBeRevising_)
Questionn 6ii)

http://www.ocr.org.uk/Images/59551-q...hematics-1.pdf

I thought the (y2 - y1 )/( x2 - x1 )

method can only be used when finding the gradient of two points on a straight-line?
You have two points: (a,a^2+5) and (1,6).
3. (Original post by BabyMaths)
You have two points: (a,a^2+5) and (1,6).
but its not a straight line?
4. (Original post by IShouldBeRevising_)
but its not a straight line?
Line segment means a straight line connecting the two points.
5. (Original post by PythianLegume)
Line segment means a straight line connecting the two points.
Exactly what I was going to say.

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6. (Original post by PythianLegume)
Line segment means a straight line connecting the two points.
oh... I thought it meant the curve connecting the two points

Yeah thanks that clears it up now.
7. Just to point out, I didn't mean that post in a bad way, just saying that I agreed exactly with what you just said, as I was going to write the same thing, so meant as more of a compliment

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