Free Printable WorksheetMathGrade 8Math Curriculum8.SP.A.2

8.178 Using Technology to Create Scatter Plots and Trend Lines Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Math worksheet provides structured practice on 8.178 Using Technology to Create Scatter Plots and Trend Lines. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

8.178 Using Technology to Create Scatter Plots and Trend Lines - Which interpretation correctly matches the technology output (trend line, slope, intercept) to the data and context? (CCSS 8.SP.A.2; CA 8.SP.A.2; MA 8.SP.A.2)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 8

Subject

Math

Domain

Math Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 8.178 Using Technology to Create Scatter Plots and Trend Lines skill assessments:

Problem 1Difficulty: Hard
A residual plot from a technology tool shows mostly negative residuals for small x-values and mostly positive residuals for large x-values. What does this suggest?
AThe data cannot have an association because the residuals are not all 0.
BThe line fits perfectly because the residuals change sign.
CThe line is overestimating at small x-values and underestimating at large x-values, so a non-linear pattern may be present.
DThe line must have slope 0 because the residuals vary.
Solution & Explanation:If the line overestimates one end and underestimates the other, the relationship may curve rather than stay perfectly linear.
Problem 2Difficulty: Hard
A calculator uses y = -1.5x + 38 for x = days and y = number of flowers left. What does the model predict for x = 12?
Solution & Explanation:Substitute x = 12 into y = -1.5(12) + 38 = -18 + 38 = 20.
Problem 3Difficulty: Hard
A graphing app makes a line of best fit from x-values between 2 and 9. Solving the equation gives x = 27 for a target y-value. Should that answer be trusted as a practical prediction?
ANo. Solving for x is only useful if the resulting value is inside or reasonably near the data range.
BYes. Any value from a trend line is always reliable.
CNo. Trend lines can never be used to solve for x.
DYes. The sign of r guarantees the answer.
Solution & Explanation:x = 27 is far outside the data range, so that result is an extrapolation and may not be reliable.

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 8 Math students. It aligns with educational standard 8.SP.A.2 (Primary standard selected for prompt fields: CCSS 8.SP.A.2. Skill statement: Which interpretation correctly matches the technology output (trend line, slope, intercept) to the data and context? Associated standards listed with this skill: CCSS 8.SP.A.2; CA 8.SP.A.2; MA 8.SP.A.2. Use this embedded wording as the best available supporting standard description for this workflow.).

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