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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.

Read the first 7 Graph flashcards as text

  1. Two lines are parallel. What must be true about their slopes?

    Answer: They are equal

    Parallel lines never intersect because they share the same slope.

  2. A line has slope 3. What is the slope of a line perpendicular to it?

    Answer: -1/3

    Perpendicular slopes are negative reciprocals, so the slope is -1/3.

  3. In the equation y = -2x + 6, what does the 6 represent on the graph?

    Answer: The y-intercept

    In y = mx + b, the constant b is the y-intercept, here 6.

  4. Which point lies on the line y = x - 4?

    Answer: (6, 2)

    Substituting x = 6 gives y = 6 - 4 = 2, so (6, 2) is on the line.

  5. A graph shows a line falling from left to right. What is true about its slope?

    Answer: It is negative

    A line that decreases from left to right has a negative slope.

  6. What is the distance between the points (0, 0) and (3, 4)?

    Answer: 5

    Using the distance formula, the square root of (3² + 4²) equals 5.

  7. If a line has slope 0 and passes through (0, 3), what is its equation?

    Answer: y = 3

    A slope of 0 produces a horizontal line, here y = 3.