Math Problem Statement
Determine if each graph shows a function with a constant or varying rate of change. Also, analyze the table of side lengths and areas for rugs and interpret the equation y=12x+8 representing the cost of a baby bottle and formula.
Solution
The image you uploaded shows a math test with questions involving graphs, rates of change, and interpreting formulas. Here's a breakdown of the tasks on the sheet:
1. Graphs with Constant or Varying Rate of Change:
- The first part asks you to determine if each graph shows a function with a constant or varying rate of change.
- Constant rate of change means the function increases or decreases by the same amount at each interval, typically represented by a straight line.
- Varying rate of change means the rate of increase or decrease changes at different intervals, often represented by a curve.
2. Ms. Hawks' Rug Areas:
- A table with side lengths of rugs and their corresponding areas is provided.
- The question asks you to determine if the function represented by the values in the table shows a linear or nonlinear relationship.
- A linear function will have a constant rate of change (a straight line when graphed).
- A nonlinear function will have a varying rate of change.
3. Mrs. Vargas' Baby Bottle and Formula:
- An equation, , models the total cost of a baby bottle and formula, where is the number of containers of formula.
- The question asks for the rate of change and the initial value in this situation.
- Rate of change refers to how the cost changes as the number of containers of formula changes.
- Initial value represents the cost when no formula containers are purchased, which would just be the cost of the bottle.
- The question asks for the rate of change and the initial value in this situation.
Answering the Questions:
- Question 5: The graphs show different functions. You’ll identify each graph's rate of change (constant or varying).
- Question 6: Analyze the table of side lengths and areas. If the side lengths and areas grow in a predictable way (like a consistent multiplier), the relationship is likely linear.
- Question 7: For the equation , the rate of change is 12 (the cost per container of formula), and the initial value is 8 (the cost of the bottle).
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Math Problem Analysis
Mathematical Concepts
Rates of Change
Linear Functions
Nonlinear Functions
Graph Analysis
Algebra
Formulas
y = 12x + 8
Theorems
Linear Function Theorem
Constant Rate of Change
Suitable Grade Level
Grades 7-9