exam Maths Puzzle Numerical Ability

Hi Can I have some help solving this piecewise function?

Evaluate the piecewise defined function at the indicated values.
f(x)={(-2x if x < -5, x + 4 if -5 <= x <= 2, (x - 2)

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exam Other Question

Solve the system y=2x+3 and y=4x+7 using the substitution method. Which two expressions are equivalent? Explain your reasoning.


-sqrt, sqrt-36, -6