Write an expression equivalent to (6x + 4y) – 2y by combining like terms.
1 answer:
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Given is a piecewise function which follows different expressions according the the value of input x.
Given
It says to find f(-4) i.e. the value of function f(x) at x = -4.
At point x = -4, f(x) is x³, if -5 ≤ x ≤ 2.
So, f(-4) = (-4)³
f(-4) = -4 × -4 × -4
f(-4) = -64.
Hence, option A is correct i.e. -64.