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What is the (y)-intercept of the equation (2x+y=9)?
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Answer and explanation
Correct answer: 9
To find the y-intercept, put x=0. In 2x+y=9, this gives y=9, so the y-intercept is 9; the corresponding point on the graph is (0, 9). Here, -2 is the slope because y=-2x+9. Exam tip: always set x=0 to find the y-intercept.
Frequently asked questions
What is the correct answer to this question?
9
Why is this the correct answer?
To find the y-intercept, put x=0. In 2x+y=9, this gives y=9, so the y-intercept is 9; the corresponding point on the graph is (0, 9). Here, -2 is the slope because y=-2x+9. 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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