What is the coefficient of (x) in the line (y=-12x+18)?
Answer and explanation
Correct answer: -12
The equation of the line is y = -12x + 18. The number multiplying x is -12, so the coefficient of x is -12. In the form y = mx + c, m is also the slope; hence the slope here is -12. The number 18 is the constant term (y-intercept), not the coefficient of x. Exam tip: Always include the sign with the coefficient of x.
Frequently asked questions
What is the correct answer to this question?
-12
Why is this the correct answer?
The equation of the line is y = -12x + 18. The number multiplying x is -12, so the coefficient of x is -12. In the form y = mx + c, m is also the slope; hence the slope here is -12. The number 18 is the constant term (y-intercept), not the coefficient of x. Exam tip: Always include the sign with the coefficient of x.
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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