Math Problem Statement

Use the model Y = -2.05X + 38.42 to estimate the profit in 1968, where X represents years after 1960 and Y represents the profit (or loss).

Solution

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extracted_textThe image contains a mathematical problem involving a linear model. The model provided is:

Y=2.05X+38.42Y = -2.05X + 38.42

Where:

  • YY represents the profit (or loss) for a company,
  • XX is the number of years after 1960.

The task is to use this model to estimate the profit in 1968.

Step 1: Determine XX for 1968

To find XX for 1968, we use the following relation:

X=19681960=8X = 1968 - 1960 = 8

Step 2: Substitute X=8X = 8 into the linear model

Now, substitute X=8X = 8 into the model Y=2.05X+38.42Y = -2.05X + 38.42:

Y=2.05(8)+38.42Y = -2.05(8) + 38.42 Y=16.4+38.42Y = -16.4 + 38.42 Y=22.02Y = 22.02

Conclusion:

The estimated profit for the company in 1968 is 22.02 (in the same unit as the given values).

Would you like more details or have any questions about this process? Here are some related questions to further explore:

  1. How do linear models help in predicting future data points?
  2. What are the implications of a negative slope in a linear model?
  3. How could we interpret the value of the intercept in this model (38.42)?
  4. What are some other methods for modeling company profit over time (besides linear models)?
  5. How would the prediction change if the slope was positive instead of negative?

Tip: Always check the units of your variables to ensure your final answer makes sense in context!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Substitution Method
Slope-Intercept Form

Formulas

Y = -2.05X + 38.42

Theorems

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Suitable Grade Level

Grades 8-10