(a) A line "t" is parallel to 3y = 6x + 9. Find the slope of this line "t". (b) Another line "r" is perpendicular to the line 3y = 6x + 9. Find the gradient of the line "r"
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(i) let line t is equal to m1
and the equation of line 3y=6x+9 =m2
the line which is parallel to each other their slope of line is equal
therefore m1 is equal to m2
y=2x+3
m2=2
therefore slope of line t is equal to 2
(Ii)= slope of a line m2 is equal to 2
m1*m2=-1
than m1=-1/2
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