exam Maths Puzzle Numerical Ability

Thanks for your help!!!
Graph the following
4x+y>4
note > is underlined
Thanks again!!!

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exam Other Question

Please help to solve

x^2 + y^2 = 36

2x^2 - y^2 = -9 without drawing a graph of the given equation, determine
(a) how many x-intercepts the parabola has
(b) whether it's vertex lies avove below or on the x-axis. Show all work

y=