Which line can have slope (0)?
Answer and explanation
Correct answer: \(y=7\)
A line with slope 0 is horizontal and has the form \(y=\text{constant}\). In \(y=7\), the value of \(y\) remains 7 for every value of \(x\), so its slope is 0. The slopes of \(y=2x+1\) and \(y=-3x+5\) are 2 and −3 respectively. Exam tip: a line of the form \(y=\text{constant}\) always has zero slope.
Frequently asked questions
What is the correct answer to this question?
\(y=7\)
Why is this the correct answer?
A line with slope 0 is horizontal and has the form \(y=\text{constant}\). In \(y=7\), the value of \(y\) remains 7 for every value of \(x\), so its slope is 0. The slopes of \(y=2x+1\) and \(y=-3x+5\) are 2 and −3 respectively. Exam tip: a line of the form \(y=\text{constant}\) always has zero slope.
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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