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What is the (y)-intercept of the line (y=-x-12)?
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Answer and explanation
Correct answer: \(-12\)
To find the \(y\)-intercept, put \(x=0\). Then \(y=-0-12=-12\), so the line crosses the \(y\)-axis at \(-12\). Here, \(-1\) is the slope, not the \(y\)-intercept. Exam tip: in \(y=mx+c\), \(c\) is the \(y\)-intercept.
Frequently asked questions
What is the correct answer to this question?
\(-12\)
Why is this the correct answer?
To find the \(y\)-intercept, put \(x=0\). Then \(y=-0-12=-12\), so the line crosses the \(y\)-axis at \(-12\). Here, \(-1\) is the slope, not the \(y\)-intercept. Exam tip: in \(y=mx+c\), \(c\) is the \(y\)-intercept.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Slope and y-intercept.
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