What is the (y)-intercept of (8x-2y+10=0)?
Answer and explanation
Correct answer: 5
To find the y-intercept, put x=0 because every point on the y-axis has x-coordinate 0. This gives -2y+10=0, so -2y=-10 and y=5. Hence, the line meets the y-axis at (0,5), and its y-intercept is 5. The value -4 can result from a sign error. Exam tip: always set x=0 to find the y-intercept.
Frequently asked questions
What is the correct answer to this question?
5
Why is this the correct answer?
To find the y-intercept, put x=0 because every point on the y-axis has x-coordinate 0. This gives -2y+10=0, so -2y=-10 and y=5. Hence, the line meets the y-axis at (0,5), and its y-intercept is 5. The value -4 can result from a sign error. Exam tip: always set x=0 to find the y-intercept.
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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