Which statement about the lines (y=7x-3) and (y=-4x-3) is correct?
Answer and explanation
Correct answer: Both lines have the same y-intercept
In the form y = mx + c, m is the slope and c is the y-intercept. The slopes of the two lines are 7 and -4, so they are not equal. Since the constant term in both equations is -3, both lines have the same y-intercept, -3. Exam tip: In y = mx + c, identify the slope from the coefficient of x and the y-intercept from the constant term.
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What is the correct answer to this question?
Both lines have the same y-intercept
Why is this the correct answer?
In the form y = mx + c, m is the slope and c is the y-intercept. The slopes of the two lines are 7 and -4, so they are not equal. Since the constant term in both equations is -3, both lines have the same y-intercept, -3. Exam tip: In y = mx + c, identify the slope from the coefficient of x and the y-intercept from the constant term.
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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