7
Graph of an equation.
This kind of question usually accompanies a specific table of ordered pairs. The idea is that the ordered pairs take the form of (x, f(x)) where the first number of the ordered pair x, is a value of the variable for some equation. When that value is used in place of the variable in the equation, we can calculate a specific value. That calculated value appears as the second value of the ordered pair and is represented by f(x) above. Typically the equation is relatively simple, such as a linear equation or a quadratic equation. Therefore, in order to determine the equation, we have to know exactly what the ordered pairs are.
In general you cannot. Any set of ordered pairs can be a graph, a table, a diagram or relation. Any set of ordered pairs that is one-to-one or many-to-one can be an equation, function.
15
I am sorry but the question is incomplete. You have not mentioned the ordered pairs and the equation is incomplete as well.
The question does not contain an equation nor an inequality. There cannot, therefore be any ordered pairs which can satisfy an expression.
The question cannot be answered unless a specific equation is cited.
There are infinitely many ordered pairs. One of these is (0, 0).
3x
There are an infinite number of ordered pairs that satisfy the equation.
1,6 2,12 3,18 4,24 5,30
7
None. There is no equation or inequality in the question - only an expression. An expression cannot have a solution.
(1, 0.2), (2, 0.1)
It is the set of infinitely many ordered pairs, (x, y) such that the two satisfy the given equation.
Any pair of numbers at all, as long as one of them is triple the other one.