What is the slope of the line (y=-3x+8)?
Answer and explanation
Correct answer: -3
The slope-intercept form of a line is \(y=mx+c\), where \(m\) is the slope. In \(y=-3x+8\), the coefficient of \(x\) is \(-3\), so the slope is \(-3\). The number \(8\) is the y-intercept, not the slope. Exam tip: In \(y=mx+c\), the coefficient of \(x\) gives the slope directly.
Frequently asked questions
What is the correct answer to this question?
-3
Why is this the correct answer?
The slope-intercept form of a line is \(y=mx+c\), where \(m\) is the slope. In \(y=-3x+8\), the coefficient of \(x\) is \(-3\), so the slope is \(-3\). The number \(8\) is the y-intercept, not the slope. Exam tip: In \(y=mx+c\), the coefficient of \(x\) gives the slope directly.
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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