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maths p4

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vids:
cn sum1 pls help me wit distance-time graphs. ???

Q80BOY:
Distant/Time Graphs

Axis:
x = time
y = distance

Straight Line:
up or down = constant speed

Horizontal Line:
no movement

Gradient:
speed

hope this helps  ;)

vids:
Thanks

Q80BOY:

--- Quote from: vids on May 16, 2009, 07:07:20 am ---is there a metod to find a matrix for rotaton or reflection ode than  simultaneous??????

--- End quote ---

the matrix for reflection in line y=x is 0 1
                                                  1 0

the matrix for refection in line y=-x is 0 -1
                                                  -1 0

the matrix for clockwise rotation of 90 degrees about the origin is 0 1
                                                                                       -1 0

the matrix for anticlockwise rotation of 90 degrees about the origin is 0 -1
                                                                                             1  0

and u can use the formula method instead of the simultaneous method

Ukhti-R:
wots the formula method ?

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