exam Maths Puzzle Numerical Ability

Graph these inequalities:

4x+y>4 NOTE: the greater than sign is underlined! Thank you for your time!!!!
Mcgraw Hill 6th Edition. Chapter 7. Exercise #16.

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exam Other Question

Sketch the graph of the following function
f(x) = x^2 - 2
I wonder if you could assist me with this problem please:
ac-ad-bc+bd. It says to factor completely. Thank you.