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Grade 8 Math Flashcards

7 cards from real AzM2 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. What is the slope of the line passing through (2, 3) and (6, 11)?

    Answer: 2

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

  2. Which of the following is an irrational number?

    Answer: √50

    √50 = 5√2, which cannot be expressed as a fraction, making it irrational.

  3. A cylinder has radius 3 cm and height 10 cm. What is its volume? (Use π ≈ 3.14)

    Answer: 282.6 cm³

    V = πr²h = 3.14 × 9 × 10 = 282.6 cm³.

  4. Solve for x: 3(x − 4) = 2x + 1

    Answer: x = 13

    3x − 12 = 2x + 1 → x = 13.

  5. Which equation represents a linear function?

    Answer: y = 2x + 5

    y = 2x + 5 is in slope-intercept form (y = mx + b), which is linear.

  6. A bag contains 4 red, 3 blue, and 5 green marbles. What is the probability of picking a blue marble?

    Answer: 3/12

    P(blue) = 3/12 = 1/4, but 3/12 is the unreduced form matching option D.

  7. What is the value of 5⁻² ?

    Answer: 1/25

    5⁻² = 1 / 5² = 1/25.

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