Qualification > Math

IGCSE MATHS DOUBTS HERE !!!!

<< < (16/34) > >>

elemis:
Parallel lines ALWAYS have the same gradient.

Thus, m = 2

Next we find the point at which y = 2x +8 crosses the X AXIS. This is the same as point A as marked on the diagram.

Hence, at this point the y coordinate is zero. Thus we get :

2x +8 = 0

x = -4

Since the distance between A and B is 9 we add 9 to -4 to get the corresponding X INTERCEPT for the other line. In this case the x intercept is (5,0)

We input the coordinate (5,0) into y = 2x +c

We get 0 = 2*5 + c

c = -10

~aanchal~:

--- Quote from: Ari Ben Canaan on October 31, 2010, 01:16:22 pm ---Parallel lines ALWAYS have the same gradient.

--- End quote ---
thanx alott

another question
m/j 2009 q 17(B)

elemis:
Gimme some time.

elemis:
You are allowed to use tracing paper.

So Place your tracing paper over the page and trace the grid and triangle.

With your tracing paper still on top of the page place your pencil on the point 4,4.

Rotate your TRACING paper 90 degrees to the right i.e. if the original position of your tracing paper was portrait it should now be landscape.

Make a note of the vertices of the triangle as in its new position.

Draw in the triangle.

~aanchal~:
m/j 2003 p2 q 17
FAST

Navigation

[0] Message Index

[#] Next page

[*] Previous page