## LESSON 9-7 PROBLEM SOLVING SQUARES AND SQUARE ROOTS

• July 16, 2019

Equations which are linear: You have noticed that the parabola opens upward or downward. Let them use the different methods of finding solutions to quadratic equations. Let the students use the mathematical ideas involved in finding the solutions of quadratic equations by completing the square and the examples presented in the preceding section to answer the succeeding activities. It has a turning point called vertex which is either the March 24, lowest point or the highest point of the graph. Parabolic curves are clearly seen. QUESTION Students will understand that How do quadratic quadratic functions are useful functions facilitate tools in solving real-life finding solutions on problems and in making real-life problems and decisions in making decisions?

Activity 2 is an introductory activity to quadratic function. In this lesson, the students will be able to determine the domain, range, intercepts, axis of symmetry and the opening of the parabola. They will transform a quadratic function in general form into standard form and vice versa and lastly, they will illustrate some real-life situations that model quadratic functions. Entice the students to find out the answers to these questions and to determine the vast applications of quadratic equations, quadratic inequalities, and rational algebraic equations through this module. Ask the students to solve the problems given in Activity 6. Tell them to describe what quadratic inequalities are and how they are different from linear inequalities.

In this activity, the students will be able to apply the procedure in finding the equation of a quadratic function given the table of values. All coordinates of points on the broken x line are not anf of the solution set of both inequalities. They should be able to explain also why a number is not real.

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## Lesson 8 problem solving practice roots

In Activity 1, let the students find the roots of the given quadratic equations in 3 methods. They will also formulate quadratic equations as illustrated in some real-life situations. Solutions to Quadratic Equations with Rational Expressions. In this lesson, the students will determine the solution set of quadratic inequalities algebraically and graphically.

## Solving quadratics by taking square roots

Yes Present to the students a real-life illustration of the relationships among the roots and the terms of a quadratic equation. It is then important for the students to realize that the values of a, b, rkots c vary depending on how the quadratic equation is written. Let the students realize the number of solutions a linear equation or a quadratic equation has. Such quadratic equations can be solved by extracting square roots.

They should realize that a quadratic inequality has an infinite number of solutions. March 24, Give Activity 11 to the students to check their understanding regarding the lesson.

In the given situation, ask the students to determine whether the dimensions of the table are rational numbers without actually sqhares for the roots.

This module covers key concepts of quadratic equations, quadratic inequalities, and rational algebraic expressions. Give the pronlem opportunities to demonstrate their understanding of solving quadratic equations by using the quadratic formula by doing a practical task. Out of the given situation, ask the students to squres an equation relating the area of the bulletin board to its dimensions.

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Each line is in iambic pentameter which means it has 5 iambic feet. The Key exponent of the variable in each mathematical sentence is 2.

# (PDF) Math 9 tg draft | Diane Dabalos –

Published by Sheila Maxwell Modified over 3 years ago. Learning Outcomes Content Standard: Students will describe in oesson what is meant by a perfect square.

I and III C. They are also expected to investigate mathematical relationships in various situations involving quadratic functions. To use this expression, it is necessary for the students to determine the values of a, b, and c in a quadratic equation.

The product of the roots is Graph a quadratic function and determine the following: If we square the zeros, then the new equations are: Extraneous Root or Solution — This is a solution of an equation derived from an original equation.

How would you prepare the plan? Provide them with an opportunity to relate or connect their responses in the activities given to their new lesson, equations transformable to quadratic equations.

This lesson was about the nature of the roots of quadratic equations. Sorgenfrey, and Robert B. Let the students describe the roots of the quadratic equation and silving these to the value of its discriminant. The students will also be able to find patterns or relationships of two variables using different strategies.