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secondary 4 | A Maths
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Pls help. Tyty
Date Posted: 5 years ago
Views: 196
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These functions are known as piece-wise functions. They are not defined by only one equation, but two or more equations for different values of x.
In (e), for example, g(x) = 2x when x is a negative number and 1 - 3x otherwise. So when the value of x chosen ls a negative number like -5, g(x) acts like 2x, giving 2 (-5) = -10 as the answer. When the value of x chosen is zero or positive, g(x) acts like 1 - 3x.
Similar argument applies for (f).
It's something similar to "I must work for 8 hours a day to be paid at a rate of $7 per hour; any less and I will not be paid my salary at all".
In (e), for example, g(x) = 2x when x is a negative number and 1 - 3x otherwise. So when the value of x chosen ls a negative number like -5, g(x) acts like 2x, giving 2 (-5) = -10 as the answer. When the value of x chosen is zero or positive, g(x) acts like 1 - 3x.
Similar argument applies for (f).
It's something similar to "I must work for 8 hours a day to be paid at a rate of $7 per hour; any less and I will not be paid my salary at all".
Date Posted:
5 years ago
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