differentiation

[silk idol]

Im not sure how to do this questions

[drowsy copper]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with: ```diff
   +close

[gusty bone]

Derivate equation of curve = 2ax+b
frm given, when x=2, derivative = 7 ,,,, 4a+b=7
when x= -1, derivative = 1,,,,,,,-2a+b=1
solve to find a n b

Those two pnts lie on the curve so satisfy them in curve equation, u'll get c

u'll get the equation of curve ,,, put y=0 ,, u'll get x intercepts

[silk idol]

Wait I don’t get the Derivate part at x=2 onwards

And thank u for ur help

[gusty bone]

they said the gradient at (2,6) is 7 ryt

that means derivative at (2,6) = 7

[silk idol]

Ohh ok

[lilac niche]

+close