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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. What is the vertex of the parabola y = (x - 3)^2 + 2?

    Answer: (3, 2)

    In vertex form y = (x - h)^2 + k, the vertex is (h, k) = (3, 2).

  2. Solve for x: x/4 + 2 = 6.

    Answer: x = 16

    Subtract 2 to get x/4 = 4, then multiply by 4 to get x = 16.

  3. Which point lies on the line 2x + y = 10?

    Answer: (3, 4)

    Substituting (3, 4): 2(3) + 4 = 10, which is true.

  4. Simplify the expression: (6x^2)/(2x).

    Answer: 3x

    Divide coefficients (6/2 = 3) and subtract exponents (x^2/x = x).

  5. If the cost is c = 5n + 20 for n items, what is the cost for 8 items?

    Answer: 60

    Substitute n = 8: 5(8) + 20 = 60.

  6. What is the solution to the equation 2(x + 3) = 14?

    Answer: x = 4

    Divide by 2 to get x + 3 = 7, then x = 4.

  7. Which is the correct factored form of x^2 + 7x + 12?

    Answer: (x + 3)(x + 4)

    3 and 4 multiply to 12 and add to 7, so (x + 3)(x + 4).