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Algebra 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 Algebra flashcards as text

  1. Solve for x: 3(x - 4) = 2x + 5.

    Answer: x = 17

    Distribute to get 3x - 12 = 2x + 5, then x = 17.

  2. What is the slope of the line passing through (2, 3) and (6, 11)?

    Answer: 2

    Slope = (11 - 3)/(6 - 2) = 8/4 = 2.

  3. Factor completely: x^2 - 9.

    Answer: (x - 3)(x + 3)

    This is a difference of squares: x^2 - 9 = (x - 3)(x + 3).

  4. If f(x) = 2x + 1, what is f(5)?

    Answer: 11

    Substitute 5 for x: 2(5) + 1 = 11.

  5. Solve the inequality: 2x - 3 > 7.

    Answer: x > 5

    Add 3 to get 2x > 10, then divide by 2 to get x > 5.

  6. What are the solutions to x^2 - 5x + 6 = 0?

    Answer: x = 2 and x = 3

    Factor as (x - 2)(x - 3) = 0, giving x = 2 and x = 3.

  7. Simplify: 4x + 3(2x - 1).

    Answer: 10x - 3

    Distribute to get 4x + 6x - 3 = 10x - 3.