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Grade 8 Math 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 Grade 8 Math flashcards as text

  1. Which transformation produces a congruent figure?

    Answer: Translation

    Translations preserve size and shape, producing congruent figures.

  2. Estimate √50 to the nearest whole number.

    Answer: 7

    Since 7² = 49 is closest to 50, √50 ≈ 7.

  3. A linear function has rate of change 4 and output 10 when input is 2. What is the output when input is 0?

    Answer: 2

    Going back two steps of 4 from 10 gives 10 - 8 = 2.

  4. How many solutions does 2x + 4 = 2x + 4 have?

    Answer: Infinitely many

    Both sides are identical, so every value of x works.

  5. Lines cut by a transversal form alternate interior angles that are:

    Answer: Equal when lines are parallel

    When the lines are parallel, alternate interior angles are congruent.

  6. What is the y-intercept of 2x + 3y = 12?

    Answer: (0, 4)

    Setting x = 0 gives 3y = 12, so y = 4.

  7. A figure is dilated by a scale factor of 3. Its area is multiplied by:

    Answer: 9

    Area scales by the square of the scale factor, so 3² = 9.