Topic Details (Notes format)

How to Solve Absolute Value Equations

Subject: Mathematics

Book: Maths Mastery

Absolute value equations have the general form |x| = a. This translates to x = a or x = –a, because absolute value represents distance from zero on the number line. For a more complex example, |2x – 6| = 4 means 2x – 6 = 4 or 2x – 6 = –4. Solving these yields x = 5 or x = 1. Absolute value appears in real-world contexts like measuring deviations from an average, keeping track of net distance traveled, or financial calculations involving profit/loss changes. Familiarity with absolute value equations enables flexible handling of scenarios involving direction or magnitude in everyday problem-solving.

Practice Questions

The probability of rolling a sum of 7 with two dice is:

View Question

If a = 5 and b = 12, what is the length of the hypotenuse of a right triangle?

View Question

If the average of five consecutive odd numbers is 25, what is the largest number?

View Question

The perimeter of a rectangle is 50 cm, and its length is 15 cm. What is its width?

View Question

The area of an equilateral triangle with side length 6 cm is:

View Question

If the ratio of two numbers is 3:5 and their HCF is 4, what are the numbers?

View Question

The base of a triangle is 10 cm and its height is 6 cm. What is its area?

View Question

What is the LCM of 15 and 20?

View Question

If x - y = 5 and x + y = 15, what is the value of x?

View Question

If the sum of three consecutive integers is 96, what are the integers?

View Question