What similarity do the two lines (y=2x-6) and (y=-7x-6) have?
Answer and explanation
Correct answer: Both have the same y-intercept
In the form y=mx+c, c is the y-intercept. Both equations have the constant term -6, so both lines meet the y-axis at (0,-6). Their slopes are 2 and -7, so their slopes are not the same; the second line is decreasing. Exam tip: To find the y-intercept, put x=0.
Frequently asked questions
What is the correct answer to this question?
Both have the same y-intercept
Why is this the correct answer?
In the form y=mx+c, c is the y-intercept. Both equations have the constant term -6, so both lines meet the y-axis at (0,-6). Their slopes are 2 and -7, so their slopes are not the same; the second line is decreasing. Exam tip: To find the y-intercept, put x=0.
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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