book Maths Puzzle Numerical Ability

How do you solve Y=3x-1 then place it on a coordinate grid

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Please solve:

x^4 - 4x^3 + 3x / x^2 -1

I get x^2 - 4x + 1 - x + 2/x^2 - 1 graph the solution set of the system of inequalities:
{x^2 + y less than or equal to 25}
{y less than or equal to x^2 + 2}

i get as far as y=mx+b
y=-x^2+25
y=x^2+2