What is the value of (y) at (x=0) in the line (y=10-4x)?
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Answer and explanation
Correct answer: 10
The given equation is (y=10-4x). Substituting (x=0) gives (y=10-4(0)=10). Hence, the correct answer is 10. Here, (-4) is the slope of the line, not the value of (y) when (x=0). Exam tip: In the form (y=mx+c), the value of (y) at (x=0) is always (c).
Frequently asked questions
What is the correct answer to this question?
10
Why is this the correct answer?
The given equation is (y=10-4x). Substituting (x=0) gives (y=10-4(0)=10). Hence, the correct answer is 10. Here, (-4) is the slope of the line, not the value of (y) when (x=0). Exam tip: In the form (y=mx+c), the value of (y) at (x=0) is always (c).
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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