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What is the (y)-intercept of the line (y=15+6x)?
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Answer and explanation
Correct answer: 15
To find the y-intercept, put x=0. In y=15+6x, this gives y=15. Therefore, the line crosses the y-axis at 15. Here, 6 is the slope, not the y-intercept. Exam tip: in the form y=mx+c, c is always the y-intercept.
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 y=15+6x, this gives y=15. Therefore, the line crosses the y-axis at 15. Here, 6 is the slope, not the y-intercept. Exam tip: in the form y=mx+c, c is always 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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