Evaluate the expression 9 - z9−z9, minus, z when z = 4z=4z, equals, 4

Step-by-step explanation:

Step-by-step explanation:

Given the expression f(z) = 9-z

To get the value of the resulting value of the function when z = 4, all we need to do is substitute the value of z given into the function to have;

f(4) = 9-4

f(4) = 5

The right answer is 5

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