SOLVING EQUATIONS CONTAINING ABSOLUTE VALUE(S)

1. Step 1: Isolate the absolute value expression.
2. Step2: Set the quantity inside the absolute value notation equal to + and – the quantity on the other side of the equation.
3. Step 3: Solve for the unknown in both equations.
4. Step 4: Check your answer analytically or graphically.

We say that the absolute value of a given number is the positive version of that number. For example, the absolute value of negative 5 is positive 5, and this can be written as: | − 5 | = 5. Other examples of absolute values of numbers include: |− 9| = 9, |0| = 0, − |−12| = −12 etc.

When you see an absolute value in a problem or equation, it means that whatever is inside the absolute value is always positive. Absolute values are often used in problems involving distance and are sometimes used with inequalities. Later we will discuss graphs of absolute value equations and inequalities.

The symbol for absolute value is a bar ∣ on each side of the number.

Excel ABS Function

1. Summary.
2. Find the absolute value of a number.
3. A positive number.
4. =ABS (number)
5. number – The number to get the absolute value of.
6. Version.
7. For example, ABS(-3) returns a value of 3 and ABS(3) returns a value of 3, because the ABS function returns a number’s distance from zero.

We can use SUM ARRAY along with ABS to get the absolute value of a series of numbers in column or row. Suppose we are given a few numbers as below, so in this scenario, the SUM array formula for absolute values would be =SUM(ABS(A2:A6)). Now, select cell A7 in your spreadsheet, and enter the formula ‘=SUM(ABS(A2:A6))’.

Create an Absolute Reference

1. Click a cell where you want to enter a formula.
2. Type = (an equal sign) to begin the formula.
3. Select a cell, and then type an arithmetic operator (+, -, *, or /).
4. Select another cell, and then press the F4 key to make that cell reference absolute.

absolute cell references. For example, “$C$3” refers to cell C3, and “$C$3” will work exactly the same as “C3”, expect when you copy the formula. Note: when entering formulas you can use the F4 key right after entering a cell reference to toggle among the different relative/absolute versions of that cell address.

To copy the formula entered using absolute references and preserve the cell references, select the cell containing the formula and copy it (Ctrl + C) and click the destination cell into which you want to paste the formula.

This formula allows the user to select the Rep, Month and Count level and the formula returns the number of entries for the Rep in the selected month that are greater than or equal to the Level.

The OR function returns TRUE if any of its arguments evaluate to TRUE, and returns FALSE if all of its arguments evaluate to FALSE. One common use for the OR function is to expand the usefulness of other functions that perform logical tests.

Use the COUNT function in a formula to count the number of numeric values in a range. In the above example, A2, A3, and A6 are the only cells that contains numeric values in the range, hence the output is 3. Note: A7 is a time value, but it contains text (a.m.), hence COUNT does not consider it a numerical value.

Answer. Explanation: The Excel count function returns the count of values that are numbers, generally cells that contain numbers. Values can be supplied as constants, cell references, or ranges.

Functions for counting

1. To count numbers only, use the COUNT function.
2. To count numbers and text, use the COUNTA function.
3. To count based one one criteria, use the COUNTIF function.
4. To count based one multiple criteria, use the COUNTIFS function.
5. To count empty cells, use the COUNTBLANK function.

Suppose you want to find out how many times particular text or a number value occurs in a range of cells….Count how often multiple values occur by using a PivotTable

1. In the Summarize value field by section, select Count.
2. In the Custom Name field, modify the name to Count.
3. Click OK.

You can use the combination of the SUM and COUNTIF functions to count unique values in Excel. The syntax for this combined formula is = SUM(IF(1/COUNTIF(data, data)=1,1,0)). The SUM function then sums all the values and returns the result.

Count the number of unique values by using a filter

1. Select the range of cells, or make sure the active cell is in a table.
2. On the Data tab, in the Sort & Filter group, click Advanced.
3. Click Copy to another location.
4. In the Copy to box, enter a cell reference.
5. Select the Unique records only check box, and click OK.

If you want to learn how to count text in Excel, you need to use function COUNTIF with the criteria defined using wildcard *, with the formula: =COUNTIF(range;”*”) . Range is defined cell range where you want to count the text in Excel and wildcard * is criteria for all text occurrences in the defined range.