The function has a range of y < 3y will be -2ˣ+3. Option 3 is correct.
What exactly is a function?
A function is a statement, rule, or law that specifies the connection between two variables. Functions are common in mathematics and are required for the formulation of physical connections.
The range of an exponential function is y > 0. It must be mirrored across the x-axis and translated upward to 3 units in order to have a range of y <3.
That is, you must have something of the kind for any exponential function;
y = -ab^x +3
The function has a range of y < 3y will be -2ˣ+3.
Hence,option 3 is correct.
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