Third Year maths · C.6 · Functions
Find the x-intercept of a line
Set y to zero and solve for x.
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
Where does the line y = 2x − 16 cross the x-axis? Give the x-coordinate.
Answer: 8
Where does the line y = −4x − 24 cross the x-axis? Give the x-coordinate.
Answer: -6
Where does the line y = x − 4 cross the x-axis? Give the x-coordinate.
Answer: 4
Tip: Set y to zero and solve for x.
Print a worksheet of this skill New questions and an answer key, free.
Up next
- Next in this topic Find the slope from standard form Third Year
- Need a warm-up? Is it a function? Ordered pairs Second Year
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.