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Math Flashcards

7 cards from real CAHSEE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Math flashcards as text
  1. A jacket originally costs $80 and is on sale for 25% off. What is the sale price?

    Answer: $60

    25% of $80 = $20 discount; $80 − $20 = $60 sale price.

  2. Which of the following ordered pairs is a solution to the equation y = 3x − 1?

    Answer: (2, 5)

    When x = 2: y = 3(2) − 1 = 5, so (2, 5) satisfies the equation.

  3. A right triangle has legs of length 6 and 8. What is the length of the hypotenuse?

    Answer: 10

    By the Pythagorean theorem: c = √(6² + 8²) = √(36 + 64) = √100 = 10.

  4. Simplify: (2/3) ÷ (4/9)

    Answer: 3/2

    Dividing by a fraction means multiplying by its reciprocal: (2/3) × (9/4) = 18/12 = 3/2.

  5. A linear function passes through (0, −2) and has slope 3. What is the equation of the line?

    Answer: y = 3x − 2

    Using slope-intercept form y = mx + b with m = 3 and b = −2: y = 3x − 2.

  6. Which of the following represents a function?

    Answer: {(2,3),(3,3),(4,3)}

    In {(2,3),(3,3),(4,3)}, each x-value is unique, so it is a function.

  7. Evaluate: 3² + 4 × 2 − 5

    Answer: 12

    Using order of operations: 3² = 9; 4 × 2 = 8; 9 + 8 − 5 = 12.