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Maths Puzzle
Numerical Ability
Hello,
How do you find where a liine intercepts another point on a graph.
For example:
Line y=2/3x+13.5 and Line y=-1/2x+3
where do they intersect?
thank you
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book Other Question
I am not sure how to solve this one
ln (square root of x +4) =1
and
log base 2 (x-3) + log base 2x - log base 2 (x+2) =2
y^4 -3y^3 -2y^2 +10y -12=0 ; 1+i
one of these is the answer, which one is it:
(1 + or - i, -2,3) ; (+ or - 1, + or - 2, + or - 3, 4) ; (+ or - 2, + or - 4)