exam Maths Puzzle Numerical Ability

y^2=x+1. Find the vertex, x and y intercepts, and sketch the graph. Please help, I have no idea what to do with this!!!

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exam Other Question

5x+5<3(x+2) how would you work this out 4xcubed-13xsquared+11x-2=0
also I got this problem to do it's 2xsquared+3x+1=0 I got this answer x=1/2 and x=-1 is this right