The x coordinate.
Evaluate the function at the first number in the pair. If the answer is not equal to the second value, then the ordered pair cannot be in the function.
Conventionally the x co-ordinate.
If the reflection is over the x value, the x-value does not change.
When an ordered pair is reflected over the x-axis, the x-value remains unchanged. Only the y-value is altered; it becomes its opposite. For example, if the original ordered pair is (a, b), after reflection, it becomes (a, -b).
Another name for the first member in an ordered pair is the "first coordinate" or "x-coordinate." In the context of a Cartesian coordinate system, this value represents the position along the horizontal axis.
Evaluate the function at the first number in the pair. If the answer is not equal to the second value, then the ordered pair cannot be in the function.
Conventionally the x co-ordinate.
An ordered pair has two values. You need to define the absolute value of an ordered pair before the question can be answered. There are many possible metrics.
If the reflection is over the x value, the x-value does not change.
When an ordered pair is reflected over the x-axis, the x-value remains unchanged. Only the y-value is altered; it becomes its opposite. For example, if the original ordered pair is (a, b), after reflection, it becomes (a, -b).
Another name for the first member in an ordered pair is the "first coordinate" or "x-coordinate." In the context of a Cartesian coordinate system, this value represents the position along the horizontal axis.
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y
Given the ordered pair (3, y), what value of ywould make the ordered pair a solution of the equation 4x − 2y = 24?12
The ordered pair IS the coordinates on the graph. If you have the ordered pair (1,2) that means the value of x is 1 and the value of y is 2, so to get to that point on a graph from the origin (center) you would move right 1 unit and up 2 units.
The rule for a set of ordered pairs is the statement that states the relationship of of a certain value to another value.For example:given the set of ordered pair { (1,2) , (3,4) , (5,6) , (7,8) }we notice that the value of y is increased by 1 as the value of x varies.For instance, in the first ordered pair which is (1,2) where 1 is x and 2 is y such that (x,y), 1 increased by 1. In other words, x is increased by 1.So we say that the rule of the ordered pair is:{(x,y) | y = x + 1 }read as "The set of ordered pairs such that y is equal to x plus one"
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