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Senior High School Math Hub

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$Mathematics Hub$

Mathematics Hub

Senior High School Math Hub

Home
About
Learning Materials
General Mathematics
Contact

Lesson 20 : Real Life Problems Exponential Functions

Slide 1

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Welcome to General Mathematics

This page will guide you through important lessons in General Mathematics. Follow the lessons step by step to build a strong understanding and learn how to apply concepts in real-life situations.

Real Life Problems Exponential Functions

2. Read the Module

3. Solve the LAS

4. Growth Mindset Focus

“You don’t have to understand everything today — you just have to improve a little more than yesterday.”

5. Take a Quiz

Test you knowledge and apply what you’ve learned through interactive quizzes and practice activities related to module 1.

Solving Real-life Problems Involving Exponential Functions, Equations, and Inequalities

1 / 8

If the population of a town doubles in 30 years, when will it be quadruple?

a. in 45 years

b. in 60 years

c. in 90 years

d. in 100 years

2 / 8

Joana earned ₱1500 last summer. If she deposited the money in a bank account that

a. ₱2,015.35

b. ₱1,914.42

c. ₱1,846.48

d. ₱3,560.15

3 / 8

In 2012 the population of schoolchildren in a city was 90,000. This population increases at a rate of 5% each year. What will be the population of school children in year 2022?

a. 148,385 school children.

b. 150, 625 school children

c. 165, 373 school children

d. 190, 428 school children

4 / 8

Which of the following situations does not describe an exponential decay?

a. the number of rabbits doubles every month

b. the amount of substance decreases every 10 minutes

c. the atmospheric pressure decreases as you go higher

d. the value of a car depreciates every year

5 / 8

The half-life of Zn-71 is 4.25 minutes. At t = 0, there were y0 grams of Zn-71, but only 1/64 of this amount remains after some time. How much time has passed?

a. t = 20.5

b. t = 19.5

c. t = 21.

d. t = 25.5

6 / 8

If the population in 1995 of Barangay Manggahan is 1,500, and is increasing at a rate of 2.3% every 5 years, what is the projected population of the town in 2025?

a. 2,967

b. 1,681

c. 1,722

d. 1,759

7 / 8

Which of the following statements is best modeled by exponential growth?

a. the cost of pencils as a function of the number of pencils

b. the distance when a stone is dropped as a function of time

c. the distance of a swinging pendulum bob from the center as a function of time

d. the compound interest of an amount as a function of time

8 / 8

Which of the following depicts the increase in number or size at a constantly growing rate?

a. exponential decay

b. exponential growth

c. half-life

d. time elapsed

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Solving Real-life Problems Involving Exponential Functions, Equations, and Inequalities

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LAS- Solving Real-life Problems Involving Exponential Functions, Equations, and Inequalities

18. General Mathematics Q1 - Representing Real-Life Situations using Logarithms

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