exam Maths Puzzle Numerical Ability

Identify the conic section, write in standard form, graph and label all vertices and asymptotes.
2x^2+y-x+3=0

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I tried to solve this by using the following formulas.

75=d(miles)/t(hours) -> t= d/75

s(speed)= d/75 -> ???

100= 2d/t+t(2nd lap) -> t+t(2nd lap)=d/50

PLEASE HELP ME
how to graph: 4x+6y=4z