The Range of the function is { 10,11,12,13} ,Option D is the correct answer.
What is a Function ?
A function is a mathematical statement which creates a relationship between a dependent variable and an independent variable.
It always comes with a defined Domain and Range.
Domain is the possible input value to the function.
Range is the set of values that can be obtained from the function
The discrete function given is
G(x) = { (9,10) (10,11) (11,12) (12,13) }
All the possible input value is the x value and all the possible output value is y.
Therefore the Range of the function is { 10,11,12,13}
Option D is the correct answer.
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