Concept explainers
a.
Write an equation to model each situation.
a.
Answer to Problem 48PPE
Explanation of Solution
Given information:
y varies inversely with the fourth power of x.
Concept Used:
- Mathematically relationship between two variables that can be expressed by an equation in which one variable is equal to constant times the other variable is called direct variation.
- Mathematically relationship between two variables that can be expressed by an equation in which the product of two variable is constant is called inverse variation.
Calculation:
According to question y varies inversely with the fourth power of x.
If y varies inversely with x the product of y and x is constant
where k is constant and
b.
The explanation for the solution process.
b.
Answer to Problem 48PPE
Explanation of Solution
Given information:
y varies inversely with the fourth power of x and directly with z.
Concept Used:
- Mathematically relationship between two variables that can be expressed by an equation in which one variable is equal to constant times the other variable is called direct variation.
- Mathematically relationship between two variables that can be expressed by an equation in which the product of two variable is constant is called inverse variation.
Calculation:
According to question y varies inversely with the fourth power of x and directly with z.
If y varies inversely with x the product of y and x is constant
where k is constant and
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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