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What is the (y)-intercept of the equation (y+6=4x)?
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Answer and explanation
Correct answer: -6
To find the y-intercept, put x=0. Then y+6=4(0)=0, so y=-6. Hence, the line meets the y-axis at -6. Choosing 6 is a common sign error because +6 becomes -6 when moved to the other side. Exam tip: for a y-intercept, always set x=0.
Frequently asked questions
What is the correct answer to this question?
-6
Why is this the correct answer?
To find the y-intercept, put x=0. Then y+6=4(0)=0, so y=-6. Hence, the line meets the y-axis at -6. Choosing 6 is a common sign error because +6 becomes -6 when moved to the other side. Exam tip: for a y-intercept, always set 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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