What is the (y)-intercept of the equation (6x-y=18)?
Answer and explanation
Correct answer: -18
To find the y-intercept, set \(x=0\). Substituting \(x=0\) in the equation gives \(-y=18\), so \(y=-18\). Hence, the y-intercept is \(-18\). The close distractor \(18\) results from overlooking the negative sign in \(-y=18\). Exam tip: always put \(x=0\) to find the y-intercept.
Frequently asked questions
What is the correct answer to this question?
-18
Why is this the correct answer?
To find the y-intercept, set \(x=0\). Substituting \(x=0\) in the equation gives \(-y=18\), so \(y=-18\). Hence, the y-intercept is \(-18\). The close distractor \(18\) results from overlooking the negative sign in \(-y=18\). Exam tip: always put \(x=0\) to find 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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