2.3 applications of equations (oct 24 pre lesson)
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The document provides information about upcoming assessments and practice problems. It includes a summary of standards on functions and interpreting functions to be covered on a quiz. It also lists exercises identifying functions that will be on the quiz. Additionally, it gives steps for interpreting word problems and recommends practicing similar problems from the textbook.
2.3 applications of equations (oct 24 pre lesson)
- 1. Warm-up 1 Write the function which takes a room of 50 m2 and decreases each dimension by the same value.
- 2. Warm-up 2: translate the following into a mathematical relation • A presidential candidate in Indonesia must be at least 30 years old, while a presidential candidate in the United States of America must be at least 35 years old.
- 3. Applications of equations Wordy word problems which are wrought with words
- 4. Quiz on Wednesday over the following standard CCSS: Mathematics, CCSS: HS: Functions, Interpreting Functions HSF-IF.A. Understand the concept of a function and use function notation. HSF-IF.A.1. Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x).
- 5. Quiz on Wednesday over the following exercise type • Identify whether each of the relations are functions or not. 1. 2y + 3x = 6 2. y2 + 3x = 6 3. y = x−3 x+2 4. xy = y − x 5. 푥 = 푦−3 2푥2
- 6. FYI: Aligned Common Core State Standards CCSS: Mathematics, CCSS: HS: Algebra, Creating Equations HSA-CED.A. Create equations that describe numbers or relationships. HSA-CED.A.1. Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions.
- 7. Steps to interpreting word problems 1. Read the problem closely 2. Label unknown quantities 3. Draw a picture 4. Translate into mathematical language 5. Consolidate information into an equation 6. Solve for at least one variable 7. Find all unknown quantities 8. Check and interpret your answer
- 8. In/Out of class practice Complete the problems from the textbook Write the problem, each step and the solution in your notebook p.105 #1-8
- 9. Number 1