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

If the sum of the squares of two consecutive positive integers is 365, what are the integers?

View Question

The perimeter of a rectangle is 40 cm, and its length is 12 cm. What is its width?

View Question

If a number is divisible by 9, it is also divisible by which of the following?

View Question

If the radius of a circle is 7 cm, what is its circumference?

View Question

If a = 2 and b = 3, what is the value of (a^2 + b^2)?

View Question

If sin(x) = 3/5 and x is in the first quadrant, what is cos(x)?

View Question

If x^2 - 6x + 9 = 0, what is the value of x?

View Question

A cone has a base radius of 7 cm and height of 24 cm. What is its volume?

View Question

The angles of a quadrilateral are in the ratio 3:4:5:6. What is the largest angle?

View Question

What is the sum of the first 50 positive integers?

View Question