Practice Test GeeksCAASPP - California Assessment of Student Performance and Progress Practice Test
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Functions Flashcards

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

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  1. What is the y-intercept of the function f(x) = 4x − 9?

    Answer: −9

    The y-intercept is the value of b in f(x) = mx + b; here b = −9, confirmed by evaluating f(0) = 4(0) − 9 = −9.

  2. Which equation models exponential growth?

    Answer: y = 2^x

    y = 2^x is exponential because the variable x appears as an exponent, causing the output to double with each unit increase in x.

  3. If f(x) = x² + 2, what is f(−3)?

    Answer: 11

    f(−3) = (−3)² + 2 = 9 + 2 = 11.

  4. Which statement best describes the rate of change of a linear function?

    Answer: It is constant

    Linear functions have a constant rate of change (slope), which is the defining characteristic that distinguishes them from non-linear functions.

  5. A function has the equation y = 3x. If x doubles, what happens to y?

    Answer: y doubles

    Since y = 3x, if x becomes 2x then y = 3(2x) = 2(3x), so y also doubles.

  6. What does the domain of a function represent?

    Answer: All possible input values

    The domain is the complete set of possible input values (x-values) for which the function is defined.

  7. Which of the following functions has the greatest rate of change (steepest slope)?

    Answer: f(x) = −4x + 2

    The rate of change is the absolute value of the slope; |−4| = 4 is the greatest among 1, 3, 4, and 2.