Interval Notation 1 - Cool Math.
If we were to write an inequality for this set, letting x be any number in the group, we would say: This same set could be described in another type of notation called interval notation. In that notation the group of numbers would be written as: Here is how to interpret this notation: The span of numbers included in the group is often imagined as being on a number line, usually the x-axis. The.
Provide the inequality and interval notation for the set graphed below. The set of numbers less than -4, including -4 The inequality Interval Notation. Inequalities and Interval Notation Finding Solution Sets for Linear Inequalities The Addition, Subtraction, Multiplication, and Division properties of equations apply to inequalities. EXCEPT When multiplying or dividing by a negative number.
If the inequality is greater than zero or greater than or equal to zero, then you want all of the positive sections found in the sign analysis chart. Step 6: Use interval notation to write the final answer.
The first two problems check for the student's ability to convert back-and-forth between inequality and interval notation. A student must understand the meaning of the square bracket and the parentheses related to the inequality symbols in order to be successful. This skill is important for students to understand what numbers to include or not to include in the solutions or domain and range.
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