The value of f(-4) is -20
How to determine the value of the function
The equation of the function is given as:
f(x) = 5x
Substitute -4 for x
f(-4) = 5(-4)
Express as product
f(-4) = 5 * -4
Rewrite as:
f(-4) = -5 * 4
Evaluate the product
f(-4) = -20
Hence, the value of f(-4) is -20
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