PRC-2 · Chapter 1 · Question 3 of 45
Ahmed is four times as old as his daughter today. If 'x' represents Ahmed's age and 'y' represents his daughter's age, which linear equation correctly models this relationship?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: A) x = 4y
Explanation
If Ahmed (x) is four times as old as his daughter (y), you must multiply the daughter's age by 4 to equal Ahmed's current age, resulting in the equation x = 4y.
More Linear And Quadratic Equations MCQs
- Q5Which of the following strictly defines a quadratic expression?
- Q6Find the roots of the quadratic equation x^2 - 5x + 6 = 0 using factorization.
- Q7When using the quadratic formula to solve ax^2 + bx + c = 0, what does the expression under the square root sign represent?
- Q8What are the roots of the quadratic equation x^2 - 4x - 5 = 0?
- Q9Which of the following is the core concept when solving a quadratic equation by completing the square?