book Maths Puzzle Numerical Ability

what would a graph look like for x-y=-3??
please help me and thanks for the help
=)

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book Other Question

Find the real solution, if any. Use quadratic formula and calculator.
x^2+sqrt2x-2=0

Thanks Caroline Describe the transformation of:
f(x)= -2(x-5)cubed+3

compared to its common function.