Core 1 maths help please very urgent Watch

geography1294
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9. The line L1
has equation 4y + 3 = 2x
The point A (p, 4) lies on L1
(a) Find the value of the constant p.
(1)
The line L2
passes through the point C (2, 4) and is perpendicular to L1
(b) Find an equation for L2
giving your answer in the form ax + by + c = 0,
where a, b and c are integers.
(5)
The line L1
and the line L2
intersect at the point D.
(c) Find the coordinates of the point D.
(3)
(d) Show that the length of CD is 3
2
√5
(3)
A point B lies on L1
and the length of AB = 80)
The point E lies on L2
such that the length of the line CDE = 3 times the length of CD.
(e) Find the area of the quadrilateral ACBE.


I cant do part e please explain someone
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geography1294
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Anyone help me please
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geography1294
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ANYONE
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geography1294
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got a core 1 exam tomo, so help would be appreciated
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Philip-flop
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(Original post by geography1294)
got a core 1 exam tomo, so help would be appreciated
You need to divide the quadrilateral into two triangles. Find the area of those two triangles and add them together.
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geography1294
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What would be the height that is what i am confued about, why is it 3root5
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BadgerNeer
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http://www.examsolutions.net/exampap...-c1-june-2012/
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boriapple
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Have you drawn a diagram? Draw a big diagram, label all points, then fill in their distances using Pythagoras.
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username2207531
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I thought I could quickly do this question and help you out but I am stumped at how you got the length CD=3.
Where is this question from?
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Philip-flop
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(Original post by JustJusty)
I thought I could quickly do this question and help you out but I am stumped at how you got the length CD=3.
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The length of  CD = \frac{3}{2} \sqrt{5}

The paper: http://www.examsolutions.net/exampap...-c1-june-2012/
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geography1294
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(Original post by JustJusty)
I thought I could quickly do this question and help you out but I am stumped at how you got the length CD=3.
Where is this question from?
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Size:  15.1 KB
may 2012 c1
much appreciated
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