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What is the (y)-intercept of the line (y=19+7x)?
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Answer and explanation
Correct answer: 19
Write the line in the form (y=mx+c): (y=7x+19). Here, the constant term is (c=19), so the (y)-intercept is 19. The value 7 is the slope of the line, not its (y)-intercept. Exam tip: set (x=0) to find the (y)-intercept.
Frequently asked questions
What is the correct answer to this question?
19
Why is this the correct answer?
Write the line in the form (y=mx+c): (y=7x+19). Here, the constant term is (c=19), so the (y)-intercept is 19. The value 7 is the slope of the line, not its (y)-intercept. Exam tip: 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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