exam Maths Puzzle Numerical Ability

Graph the solution set of x > -6.

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exam Other Question

find the x intercept for -x2+7x-11
it is x square

and x intercept for -x2 -2x-1
this is also x square find the vertical asymtotes, f any, of the graph of the rational function.

f(x)=x/x^2+4
a. x=-4,x=4
b. x=4
c. x=-4
d. no vertical asymptote