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Grade 8 math · F.6 · Intercepts and equations of lines

y-intercept from the standard form of a line

For the slope, solve for y first. For the y-intercept set x = 0, and for the x-intercept set y = 0.

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  1. What is the y-intercept of the line 2x − y = 4?

    Answer: -4

  2. What is the y-intercept of the line −x + y = −1?

    Answer: -1

  3. What is the y-intercept of the line 3x + 4y = −12?

    Answer: -3

Tip: For the slope, solve for y first. For the y-intercept set x = 0, and for the x-intercept set y = 0.

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