Practice: Use the equation of a linear model to solve problems, interpreting the slope and y-intercept. (NC.8.SP.3)
Targeted remediation practice
Description
Targeted practice for NC.8.SP.3: Use the equation of a linear model to solve problems, interpreting the slope and y-intercept. Each problem gives immediate feedback with the full worked solution. Ungraded practice toward proficiency.
Learning Objectives
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Use the equation of a linear model to solve problems, interpreting the slope and y-intercept.
Content Preview
Preview of the PRISM content
### Practice: Use the equation of a linear model to solve problems, interpreting the slope and y-intercept.
Use the equation of a linear model to solve problems, interpreting the slope and y-intercept.
Work each problem. If you get it right, you will see a check and can move on. If you get it wrong, you will see exactly why and the steps to the correct answer, then you can try the next one. This practice is not graded.
Assessment Questions
20 questionsA model for cost is $ y = 6x + 21 $, where x is items and y is total dollars. What does the y-intercept 21 represent?
A model for plant height is $ y = 5x + 24 $, where x is weeks and y is height in cm. What does the slope 5 mean?
A model for cost is $ y = 8x + 20 $, where x is items and y is total dollars. What does the y-intercept 20 represent?
A model for plant height is $ y = 4x + 25 $, where x is weeks and y is height in cm. What does the slope 4 mean?
A model for cost is $ y = 2x + 8 $, where x is items and y is total dollars. What does the y-intercept 8 represent?
Standards Alignment
Resource Details
- Subject
- Mathematics
- Language
- EN-US
- PRISM ID
- rmd26-nc-8-sp-3