Polynomials in real life
- Author:
- Melina
- Topic:
- Algebra
Polynomial let us describe real life situations
Example 1: In Almería, the taxi ride costs €1.50 for the flag drop and €0.84 for each kilometer travelled. Mathematically it can be represented by the polynomial
1.5 + 0.84 x
Enter the polynomial in the Geogebra applet below and answer the questions
¿What values of x make sense to the situation?
How much will the ride cost if we travel 3 km?
Example 2: We throw a ball up from a height of 5 meters. After a few seconds the ball reaches the ground.
Enter the polynomial in the Geogebra applet below and answer the questions
What is the maximum height the ball reach?
How many seconds does it take for the ball to reach the ground?
In what second does the ball reach its maximum height?
Example 3: Two stores sell the same t-shirts. The profits of the store A are described by the polynomial 2x +3. The profits of the store B are 4x - 2.
Answer the questions.
Which store sold more t-shirts the second year?
Which store sold more t-shirts the third year?
In what year the sales of the two stores have been the same?