If the line (y=mx+c) cuts the (y)-axis at ((0,7)), what is (c)?
Answer and explanation
Correct answer: \(7\)
In the form \(y=mx+c\), \(c\) is the y-intercept, the y-coordinate where the line meets the y-axis. The given point is \((0,7)\), so \(c=7\). It would be \(-7\) only if the intercept were \((0,-7)\). Exam tip: every point on the y-axis has \(x=0\).
Frequently asked questions
What is the correct answer to this question?
\(7\)
Why is this the correct answer?
In the form \(y=mx+c\), \(c\) is the y-intercept, the y-coordinate where the line meets the y-axis. The given point is \((0,7)\), so \(c=7\). It would be \(-7\) only if the intercept were \((0,-7)\). Exam tip: every point on the y-axis has \(x=0\).
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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