Its when a field is being tested for various values and different action is to be taken for each value.
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three examples of nested solids
false
y = 3x + 5
An ordered pair is a solution only of a linear equation in two variables - not any linear equation. Often the variables are denoted by x and y. If the first of the ordered pair is substituted for x in the equation, and the second for y, then the equation represents a true statement.
linear