Description
1) find the zero of f(x)=-4x+6
2) find the zero of f(x)=x^-4x-12
3) whats the domain of f(x) x^2-8x-9
4) whats the range of the following relation {(2,3)(-3,2)(2,9)(1,3)}
5) whats the domain of f(x)= x= the square root of -9
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Explanation & Answer
1) f( 0 ) = -4( 0 ) + 6 = 6
2) f( 0 ) = -12
3) x=-9 x=1
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