To transform these to quadratic equations, there is a need for the students to recall addition and subtraction of rational algebraic equations. They will formulate real-life problems and solve them in a variety of strategies using the concepts of quadratic functions. Emphasize to them that familiarity with quadratic functions, their zeros and their properties is very important in solving real-life problems. What is My Nature? Let the students describe those equations which are not linear and identify their common characteristics. Refer to the Assessment Map. Let them perform Activity 8 individually or in groups.

The lesson provided the students with opportunities to describe quadratic equations and solve these using the quadratic formula. Find two positive numbers whose product equals Let them use the different methods of solving quadratic equations which were already presented in the previous lessons. Let them explain why the solutions to the equation they have formulated do not all represent a particular measure that is involved in each situation. Am I a Solution or Not? Provide the students with opportunities to think deeply and test further their understanding of solving quadratic equations by completing the square. In this activity, the students will differentiate quadratic equations from linear equations, give examples of quadratic equations written in standard form and describe these, and write a quadratic equation that represents a given situation.

Provide them with opportunities to connect these concepts to their lesson, Solving Quadratic Equations by Using the Quadratic Formula.

# 1. Solving Quadratic Equations by Factoring

How do angry bird expert players hit their targets? Let the students justify their answer.

Ask the students to represent some real-life situations by quadratic equations. Sign up for the free IntMath Newsletter. Ask the students to find the sum and product of roots of quadratic equations by performing Activity 5. Vertex of the graph of a quadratic function: Moreover, ask them to solve problems involving the discriminants of quadratic equations.

Skills in analyzing the graph are very useful in solving real-life problems involving quadratic functions. In this activity, the students will make a floor plan of a new house given some conditions. Let them explain how the sokving of the roots of quadratic equations are determined then give examples to illustrate. By extracting the square root: Work in groups of 5 – 6 members.

# Solve quadratic equations with the quadratic formula (practice) | Khan Academy

Allow the students to do Activity 6. Linear equations are mathematical sentences with 1 as the highest exponent of the variable. Thus, the zeros are -2 and 1. Problems in real-life can be modeled using a quadratic function.

## 1. Solving Quadratic Equations by Factoring

You can ask the students to work individually or in a group. Let the students compare and discuss their answers. Represents a quadratic function using: Ask the students to have a closer look at some aspects of quadratic equations.

Illustrations of Quadratic 4. Give the students opportunities to demonstrate their understanding of the nature of roots of quadratic factkring by doing a practical task.

These values are required by the quadratic formula in order to solve a given quadratic equation. They will also learn to derive the equation of a quadratic function given a table of values, graphs, and zeros.

Answer Key 1 Equation 1: Assessing these will guide you in planning the teaching and learning activities needed to understand the concepts of a quadratic function. The function is quadratic.

Guide for Activity 4 Problem A a. Create a bridge design. Mathematical investigations are also given to develop mathematical thinking skills of the students and to deepen their understanding of the lesson.

The parabola opens upward.

Have you ever realized that these quantities can be mathematically represented to come up with practical decisions? In this activity, the students should realize that the dimensions of the garden represent the roots of the quadratic equation. If the equation is not quadratic, ask them to explain why.

Give the students opportunities to demonstrate their understanding of the sum and product of roots of quadratic equations by doing a practical task.