UPSKILL MATH PLUS

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The function f(x) is defined as:
 
f(x) = \begin{cases} 5x + 4 & \text{ if } x= -8 \leq x < -8\\ x^2 & \text{ if } x= -3 \leq x \leq 3\\ x^3 & \text{ if } x= 4 < x < 9 \end{cases}
 
Find the following.
 
1. f(−6) =
 
2. f(2) =
 
3. f(6) =
1