C1 Question + request for mark schemes Watch

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Revelation
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#1
Report Thread starter 14 years ago
#1
ok 2 things, Im working through some past papers for C1 from solomon and im just wandering if you anyone has the mark schemes? In particular im looking for mark schemese to papers: D,F,G,H,I.

secondly im stuck on question 9, paper G. it does seem like a kinda hard question for C1, or maybe its just a mind block i have. anyway heres the question.
Code:
9.
The Curve C has the equation y=f(x) where

f'(x) = 1 + 2/Sqrt(x)

The straight line L has the equation y= 2x - 1 and is a tangent to C at the point P.

a) State the gradient of C at P.
b) Find the x-coordinate of P.
c) Find an equation for C.
d) Show that C crosses the x-axis at the point (1,0) and at no other point.
my answers are
a) 2.
b) x=4.
c) ?
d) ?

thanks rev.
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DivideByZero
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#2
Report 14 years ago
#2
(Original post by Revelation)
ok 2 things, Im working through some past papers for C1 from solomon and im just wandering if you anyone has the mark schemes? In particular im looking for mark schemese to papers: D,F,G,H,I.

secondly im stuck on question 9, paper G. it does seem like a kinda hard question for C1, or maybe its just a mind block i have. anyway heres the question.
Code:
9.
The Curve C has the equation y=f(x) where

f'(x) = 1 + 2/Sqrt(x)

The straight line L has the equation y= 2x - 1 and is a tangent to C at the point P.

a) State the gradient of C at P.
b) Find the x-coordinate of P.
c) Find an equation for C.
d) Show that C crosses the x-axis at the point (1,0) and at no other point.
my answers are
a) 2.
b) x=4.
c) ?
d) ?

thanks rev.
http://www.thestudentroom.co.uk/t83079.html
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Revelation
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#3
Report Thread starter 14 years ago
#3
haha xD thanks.
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