✏️ Interpreting Slope & Intercept: Practice A (S-ID.C.7)
Paginepagineapp.comInterpret the slope and intercept of a linear model in context. Solve each problem.
1. h = 24x + 11, where h is plant height in cm and x is weeks. What do 24 and 11 mean?
2. T = 7x + 75, where T is savings in dollars and x is weeks. What do 7 and 75 mean?
3. T = 21x + 60, where T is savings in dollars and x is weeks. What do 21 and 60 mean?
4. C = 2x + 10, where C is cost in dollars and x is months of a phone plan. What do 2 and 10 mean?
5. C = 25x + 34, where C is cost in dollars and x is months of a phone plan. What do 25 and 34 mean?
6. T = 3x + 44, where T is savings in dollars and x is weeks. What do 3 and 44 mean?
7. C = 11x + 31, where C is cost in dollars and x is months of a phone plan. What do 11 and 31 mean?
8. T = 2x + 58, where T is savings in dollars and x is weeks. What do 2 and 58 mean?
9. T = 4x + 72, where T is savings in dollars and x is weeks. What do 4 and 72 mean?
10. h = 18x + 8, where h is plant height in cm and x is weeks. What do 18 and 8 mean?
11. T = 14x + 51, where T is savings in dollars and x is weeks. What do 14 and 51 mean?
12. T = 9x + 5, where T is savings in dollars and x is weeks. What do 9 and 5 mean?
Answer key: 1) 24 = increase per one of x (weeks); 11 = starting value when x = 0 · 2) 7 = increase per one of x (weeks); 75 = starting value when x = 0 · 3) 21 = increase per one of x (weeks); 60 = starting value when x = 0 · 4) 2 = increase per one of x (months of a phone plan); 10 = starting value when x = 0 · 5) 25 = increase per one of x (months of a phone plan); 34 = starting value when x = 0 · 6) 3 = increase per one of x (weeks); 44 = starting value when x = 0 · 7) 11 = increase per one of x (months of a phone plan); 31 = starting value when x = 0 · 8) 2 = increase per one of x (weeks); 58 = starting value when x = 0 · 9) 4 = increase per one of x (weeks); 72 = starting value when x = 0 · 10) 18 = increase per one of x (weeks); 8 = starting value when x = 0 · 11) 14 = increase per one of x (weeks); 51 = starting value when x = 0 · 12) 9 = increase per one of x (weeks); 5 = starting value when x = 0
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Worksheets › Grade 9 Math (Algebra I) › Interpreting Slope & Intercept › Interpreting Slope & Intercept
Grade 9 (ages 14–15)Numbers & mathsFree printable PDF
About this grade 9 worksheet
Free Grade 9 Algebra I math worksheet (Common Core S-ID.C.7): interpreting slope & intercept — twelve practice problems, with answer key. Skill: Interpret the slope and intercept of a linear model in context. Level: Grade 9 — also suits Year 10 (UK).
For teachers: skills & standards
- CCSS S-ID.C.7: Interpret the slope and intercept of a linear model in context
- Works as a morning-work page, a centre/station activity, homework or an early-finisher task.
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It is designed for Grade 9 (ages 14–15), but use it with any child who is ready.
What skills does it build?
Interpret the slope and intercept of a linear model in context.
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More “Interpreting Slope & Intercept” printables (s-id.c.7: interpret the slope and intercept of a linear model in context)
Interpreting Slope & Intercept: Practice B (S-ID.C.7) · Interpreting Slope & Intercept: Mixed Practice & Reasoning (S-ID.C.7) · Interpreting Slope & Intercept: Show Your Thinking (S-ID.C.7) · Interpreting Slope & Intercept: Quick Check (S-ID.C.7)
All 5 interpreting slope & intercept sheets → · Grade 9 Math (Algebra I): all 10 skills → · All Common Core grades
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