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Exponential Functions & Their Graphs (Year 11)

Free printable Year 11 Mathematical Methods worksheet on exponential functions: evaluating, index laws, solving equations, growth and decay, and graphs (ACMMM064-067).

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Year 11 · Math worksheet
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Functions: Exponential Functions & Their Graphs

Evaluate exponential functions, apply the index laws, solve exponential equations, model growth and decay, and read the graph of y = a^x. (ACARA Mathematical Methods Unit 2: ACMMM064-067.)

  1. 1.
    For f(x) = 5x5^{x}, evaluate f(-2).
  2. 2.
    For f(x) = 2x2^{x}, evaluate f(3).
  3. 3.
    For f(x) = 5x5^{x}, evaluate f(-2).
  4. 4.
    For f(x) = 10x10^{x}, evaluate f(0).
  5. 5.
    Simplify 262^{6} / 232^{3} as a single power of 2.
  6. 6.
    Simplify (52)1(5^{2})^{1} as a single power of 5.
  7. 7.
    Simplify (36)2(3^{6})^{2} as a single power of 3.
  8. 8.
    Solve 3x3^{x} = 9 for x.
  9. 9.
    Solve 3x3^{x} = 81 for x.
  10. 10.
    A radioactive sample of 100 mg halves every year: A(t) = 100 x (1/2)t(1/2)^{t}. How much remains after 3 year(s)?
  11. 11.
    A colony of 800 bacteria doubles every hour: P(t) = 800 x 2t2^{t}. How many are there after 2 hour(s)?
  12. 12.
    Sketch y = 2x2^{x}. Use the graph to state the y-intercept and the equation of the horizontal asymptote.
    -3-2-101232468xy(0, 1)(1, 2)
    The curve rises steeply to the right and flattens towards the x-axis, its horizontal asymptote at y = 0.
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