exam Maths Puzzle Numerical Ability

could you please help me with this problem? It says in my book solve. Then graph
I don't know how to make it look on my paper.
-3/4x>= -5/8

I went another site to get help,but

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exam Other Question

when you are subtracting a matrices how do you change the signs Identify the axis of symmetry, find the x-intercepts, create a suitable table of values, and then sketch the graph (including the axis of symmetry).
y = x^2 - 4x