What is the value of (y) at (x=0) in the line (y=-x+10)?
Answer and explanation
Correct answer: \(10\)
The equation of the line is \(y=-x+10\). Substituting \(x=0\) gives \(y=-(0)+10=10\). Therefore, the correct answer is \(10\). The value \(-1\) is the coefficient of \(x\), not the value of \(y\) when \(x=0\). Exam tip: In \(y=mx+c\), putting \(x=0\) gives the y-intercept \(c\).
Frequently asked questions
What is the correct answer to this question?
\(10\)
Why is this the correct answer?
The equation of the line is \(y=-x+10\). Substituting \(x=0\) gives \(y=-(0)+10=10\). Therefore, the correct answer is \(10\). The value \(-1\) is the coefficient of \(x\), not the value of \(y\) when \(x=0\). Exam tip: In \(y=mx+c\), putting \(x=0\) gives the y-intercept \(c\).
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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