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What is the (y)-intercept of the equation (4x-y=-8)?
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Answer and explanation
Correct answer: 8
To find the y-intercept, put x=0. In 4x-y=-8, this gives -y=-8, so y=8. Therefore, the y-intercept is 8. The value -8 can result from a sign error, because both sides must change sign when solving -y=-8. Exam tip: always set x=0 to find the y-intercept.
Frequently asked questions
What is the correct answer to this question?
8
Why is this the correct answer?
To find the y-intercept, put x=0. In 4x-y=-8, this gives -y=-8, so y=8. Therefore, the y-intercept is 8. The value -8 can result from a sign error, because both sides must change sign when solving -y=-8. Exam tip: always set 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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