Evaluate f(-13) f(x)=
-X-3 if
XS-13
2 <
if -13 x2-2 if -2 x +3
56
x>2

step-by-step :

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

6mm^3 or .6cm^3

      216

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  36     6

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6     6   6

factor trees are nice.