exam Maths Puzzle Numerical Ability

Graph the muber on a number line. Then write two inequalitiez that compare the two numbers

18.-6 and 4

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exam Other Question

Hi! This is the question:
Is U= The set of all polynomials in P3 with constant term 0, a subspace of P3?

I said yes because 0 lies in U, the addition of any 2 polynomials from graph y=3x^2-6x