Worksheet guiding students through solving word problems using slope-intercept form.

A worksheet titled "Slope-Intercept Form from a Word Problem" with step-by-step instructions and examples for solving linear equations based on real-world scenarios.

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Show Answer Key & Explanations Step-by-step solution for: Slope Intercept Form Word Problem Notes and Examples

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1. Identify the variables:
- Let $ x $ be the number of hours Johnny works.
- The total earnings $ E $ can be expressed as a function of $ x $.

2. Determine the rate of pay:
- Johnny earns $20 per hour.
- Therefore, the function is $ E(x) = 20x $.

3. Identify the total amount needed:
- The laptop costs $120.
- So, we need to find $ x $ such that $ E(x) = 120 $.

4. Set up the equation:
- $ 20x = 120 $

5. Solve for $ x $:
- Divide both sides by 20: $ x = \frac{120}{20} $
- $ x = 6 $

6. Conclusion:
- Johnny needs to work 6 hours to earn enough money to buy the laptop.

Answer: Johnny needs to work 6 hours.

Parent Tip: Review the logic above to help your child master the concept of slope intercept form word problems worksheet.

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