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Tournament Desk: When Scoring Lines Meet

Interpret intersections of linear graphs using basketball score margins, bracket credits, and tournament scoring predictions.

Grade 8MathInteractive · Printable

Aligned to8.EE.C.8.a

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 8
Subject: Math
Question types: Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

Students identify a system's solution as an ordered pair shared by both linear graphs.
Students interpret graph intersections in basketball scoring situations.
Students use coordinates and equations to evaluate proposed intersections.

How to use

Provide a straightedge for connecting the labeled points. Have students read each intersection before checking it against the equations or scoring context.

Curriculum

Common Core standard covered

8.EE.C.8.a

Understand that a solution to a system of two linear equations is a point where their graphs cross.

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Tournament Desk: When Scoring Lines Meet

Use graph intersections to check tournament scoring models.

Score-Margin Models

The tournament desk compares two teams playing in separate games. A score margin is a team's score minus its opponent's score. A negative margin means the team is behind. For Questions 1–4, use a straightedge to connect A to B and C to D. Each segment is part of a linear model.

Here x is minutes relative to halftime: negative values are before halftime. The y-coordinate is the score margin in points. A–B models the Comets; C–D models the Sparks.