The value of x is, -3.
What does the X in a function mean?
- A function defines one variable in terms of another.
- The statement "y is a function of x" (denoted y = y(x)) means that y varies according to whatever value x takes on.
- A causal relationship is often implied (i.e. "x causes y"), but does not *necessarily* exist.
What is the value for X?
- Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division.
- To find the value of x, bring the variable to the left side and bring all the remaining values to the right side.
- Simplify the values to find the result.
How are the functions y x?
- The phrase "y is a function of x" means that the value of y depends upon the value of x, so: y can be written in terms of x (e.g. y = 3x ).
- If f(x) = 3x, and y is a function of x (i.e. y = f(x) ), then the value of y when x is 4 is f(4), which is found by replacing x"s by 4"s .
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