✅ Writing Linear Functions: Quick Check (8.F.B.4)

Paginepagineapp.com

Name:

Date:

Construct a function to model a linear relationship (y = mx + b). Work on your own. Then check your answers.

1. Line with slope -5 through (2, -17). Equation?

2. x: 0, 1, 2, 3 → y: 6, 12, 18, 24. Equation?

3. Line with slope -1 through (2, 5). Equation?

4. x: 0, 1, 2, 3 → y: 8, 5, 2, -1. Equation?

5. Line with slope 2 through (2, -2). Equation?

6. x: 0, 1, 2, 3 → y: 7, 6, 5, 4. Equation?

7. Line with slope 1 through (2, 9). Equation?

8. x: 0, 1, 2, 3 → y: 5, 9, 13, 17. Equation?

9. Line with slope 3 through (2, 13). Equation?

10. x: 0, 1, 2, 3 → y: -4, -5, -6, -7. Equation?

Score: ____ / 10 I can construct a function to model a linear relationship (y = mx + b): ☐ yes ☐ almost ☐ not yet

Answer key: 1) y = -5x − 7 · 2) y = 6x + 6 · 3) y = -1x + 7 · 4) y = -3x + 8 · 5) y = 2x − 6 · 6) y = -1x + 7 · 7) y = x + 7 · 8) y = 4x + 5 · 9) y = 3x + 7 · 10) y = -1x − 4

Love free resources? The free Pagine app tracks the books your child reads — kids earn streaks & badges. 📚 App Store · Google Play

← All worksheets

Free to print & share · pagineapp@mwamb.compagineapp.com

Worksheets › Grade 8 Math › Writing Linear Functions › Writing Linear Functions

Grade 8 (ages 13–14)Numbers & mathsFree printable PDF

About this grade 8 worksheet

Free Grade 8 math worksheet (Common Core 8.F.B.4): writing linear functions — a ten-question quick check (quiz), with answer key. Skill: Construct a function to model a linear relationship (y = mx + b). Level: Grade 8 — also suits Year 9 (UK).

For teachers: skills & standards

CCSS 8.F.B.4: Construct a function to model a linear relationship (y = mx + b)
Works as a morning-work page, a centre/station activity, homework or an early-finisher task.

Frequently asked questions

Is this worksheet free?

Yes — it is free to print for home or the classroom. Sign in with a free Pagine account, then use the Print button or save it as a PDF.

What age is it for?

It is designed for Grade 8 (ages 13–14), but use it with any child who is ready.

What skills does it build?

Construct a function to model a linear relationship (y = mx + b).

Where can I find grade 8 books to read with it?

Pagine's free library has 20,000+ children's books you can read in the Pagine e-reader or the free Pagine app — sorted by age and grade, with free audiobooks too.

More “Writing Linear Functions” printables (8.f.b.4: construct a function to model a linear relationship (y = mx + b))

Writing Linear Functions: Practice A (8.F.B.4) · Writing Linear Functions: Practice B (8.F.B.4) · Writing Linear Functions: Word Problems (8.F.B.4) · Writing Linear Functions: Show Your Thinking (8.F.B.4)

All 5 writing linear functions sheets → · Grade 8 Math: all 10 skills → · All Common Core grades

📚 Read along: 20,000+ free books in the Pagine e-reader

Pair this grade 8 worksheet with a story. Pagine's free library has 20,000+ children's books — chapter books, classics and non-fiction, classics and free audiobooks — that you can read right in the Pagine e-reader on any phone, tablet or computer, with adjustable text size and night mode. No ads.

Mother Nature's Bad Hair Day

Global Digital Library

Read free →

Lata Loves Trees

Global Digital Library

Read free →

The Water Carnival

Global Digital Library

Read free →

McGaiver the Galactic Taxi Driver

Global Digital Library

Read free →

Where Did My Home Go?

Global Digital Library

Read free →

Run Away to the Stars

Global Digital Library

Read free →

Browse free grade 8 books → · Grade 8 reading level · Free audiobooks · Middle school reading list

📱 Get the free Pagine app — log every book your child reads (scan the barcode or search), set reading goals, and watch streaks and badges grow. Download on the App Store · Get it on Google Play