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What is the value of (y) at (x=0) in the line (y=14-7x)?
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Answer and explanation
Correct answer: 14
The equation is y=14-7x. Substituting x=0 gives y=14-7(0)=14. Therefore, the value of y at x=0 is 14, which is also the y-intercept of the line. The number -7 is the slope, not the value of y at x=0. Exam tip: To find the y-intercept, always put x=0.
Frequently asked questions
What is the correct answer to this question?
14
Why is this the correct answer?
The equation is y=14-7x. Substituting x=0 gives y=14-7(0)=14. Therefore, the value of y at x=0 is 14, which is also the y-intercept of the line. The number -7 is the slope, not the value of y at x=0. Exam tip: To find the y-intercept, always put 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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