This is NOT the graph of a function y=f(x). However, if you solve the original equation for y in terms of x, you can break the graph into two pieces, each of which is the graph of a function.
The real solution are : x= -4/sqroot7, y= 2/sqroot 7
x= 4/sqroot7, y= -2/sqroot 7
integer solution are: (-1,2) , (1,-2), (1,1)
Answer:
100% left handed people
20.6% = women
Not women who are left handed
=100-20.6
=79.4%
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