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What is the (y)-intercept of the equation (5x-y=15)?
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Answer and explanation
Correct answer: -15
To find the y-intercept, put x=0. In 5x-y=15, this gives -y=15, so y=-15. Hence, the y-intercept is -15. Option 15 can result from missing the sign change while solving for y. Exam tip: For the y-intercept of a linear equation, always substitute x=0.
Frequently asked questions
What is the correct answer to this question?
-15
Why is this the correct answer?
To find the y-intercept, put x=0. In 5x-y=15, this gives -y=15, so y=-15. Hence, the y-intercept is -15. Option 15 can result from missing the sign change while solving for y. Exam tip: For the y-intercept of a linear equation, always substitute 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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