Write the equation of a line from a table
Find the slope from two columns, then find b with one column.
Loading a question…
You've done today's 10 free questions.
Come back tomorrow for 10 more, or get unlimited practice with a membership.
Want more today? Print 20 more questions free, with the answers.
Already a member? Sign in.
See worked examples
A linear relationship has x = 1, 3, 5 and y = 3, −1, −5. Write its equation in the form y = mx + b.
Answer: y = -2x + 5
A linear relationship has x = −2, 1, 4 and y = −2, 13, 28. Write its equation in the form y = mx + b.
Answer: y = 5x + 8
A linear relationship has x = 2, 5, 8 and y = −3, −12, −21. Write its equation in the form y = mx + b.
Answer: y = -3x + 3
Tip: Find the slope from two columns, then find b with one column.
Print a worksheet of this skill New questions and an answer key, free.
Up next
- Next in this topic Write an equation from a real-world situation Grade 8
- Ready for more Solve two-step equations Grade 9
- Need a warm-up? One-step equations: add and subtract Grade 7
Print a free worksheet with answers (20 questions).
Practise without limits
Members practise as much as they like, every day, and get the printable packs and lessons too.