Question

The constant of proportionality is the amount a relationship will change for each unit.

It is represented by the value of this ratio: k=yx


One of the ways a proportional relationship is identified is with an equation.

y=kx




The constant of proportionality (unit rate) is $2.25 per pound. The equation for this relationship is:

y = 2.25x

where y is the cost and x is the pound of oranges.

(8 points)
Determine the equation for each table and graph below.



The constant of proportionality is
and the equation for this relationship is
.

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The constant of proportionality is
and the equation for this relationship is
.

========================================





The constant of proportionality is
and the equation for this relationship is
.

========================================





The constant of proportionality is
and the equation for this relationship is
.



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Answers

There are no human answers yet.
Answered by GPT-4o mini
It looks like you're trying to determine equations for different proportional relationships based on given data in tables or graphs. However, without the specific tables or graphs to examine, I can't provide exact values or equations.

To help you understand how to derive the constant of proportionality and the corresponding equations from a table or graph, here’s a step-by-step approach:

1. **Identifying the Constant of Proportionality (k)**:
- Look at the ratio of \( y \) (dependent variable) to \( x \) (independent variable) at any given point.
- This ratio should remain constant across all points in a proportional relationship, meaning \( k = \frac{y}{x} \).

2. **Formulating the Equation**:
- Once you have determined \( k \), you can write the equation in the form \( y = kx \).

### Example
Let's go through a hypothetical example together:

**Suppose you have the following data:**
- When \( x = 1 \), \( y = 3 \)
- When \( x = 2 \), \( y = 6 \)
- When \( x = 3 \), \( y = 9 \)

1. Calculate the constant of proportionality:
- For \( x = 1 \), \( k = \frac{y}{x} = \frac{3}{1} = 3 \)
- For \( x = 2 \), \( k = \frac{y}{x} = \frac{6}{2} = 3 \)
- For \( x = 3 \), \( k = \frac{y}{x} = \frac{9}{3} = 3 \)

Since the ratio is constant, \( k = 3 \).

2. Write the equation:
- The equation representing this relationship is \( y = 3x \).

You would follow this same approach for each set of data you have.

If you can provide the specific tables or graphs, I would be happy to help you determine the constant of proportionality and the equations for each relationship!

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