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Graph Flashcards

7 cards from real PARCC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. On a coordinate plane, what is the x-coordinate of the point where a line crosses the x-axis called?

    Answer: The x-intercept

    A line crosses the x-axis at its x-intercept, where y equals 0.

  2. A line passes through (0, 4) and has a slope of 2. What is its equation in slope-intercept form?

    Answer: y = 2x + 4

    Slope-intercept form is y = mx + b, so m = 2 and b = 4 gives y = 2x + 4.

  3. What is the slope of a horizontal line?

    Answer: 0

    A horizontal line has no vertical change, so its slope is 0.

  4. Which quadrant contains the point (-3, -5)?

    Answer: Quadrant III

    Both coordinates are negative, which places the point in Quadrant III.

  5. What is the slope of the line through points (1, 2) and (3, 8)?

    Answer: 3

    Slope equals (8 - 2)/(3 - 1) = 6/2 = 3.

  6. A vertical line passes through x = 5. What is its slope?

    Answer: Undefined

    A vertical line has no horizontal change, making its slope undefined.

  7. What are the coordinates of the origin on a coordinate plane?

    Answer: (0, 0)

    The origin is where the x-axis and y-axis intersect at (0, 0).