Question: Can someone help me with this please, I don't understand. Functions are equations in two variables that have special properties.Often equations that are used in

Can someone help me with this please, I don't understand.

Functions are equations in two variables that have special properties.Often equations that are used in the real world are also functions.Using function notation allows us a way to convey both the input and the output information of the equation in one concise representation.

z(t) + 2t^2 + 7t - 4

Find z(-4)
Find z(3)

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