Worksheets · Algebra 2

Asymptotes and intercepts of trig functions worksheet for Algebra 2

Algebra 2 reads asymptotes and intercepts straight off the equation in radians, using the same period rule as for graphing sine and cosine. Each question asks for the first asymptote or x-intercept to the right of the y-axis and the gap to the next one; shifted graphs ask for every asymptote on [0, 2π).

Also taught in Precalculus, at its own level and with its own examples.

The preview can look cramped on a phone. The PDF and printed sheet come out normal.

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Trig Asymptotes and Intercepts

Date Period

Answer each question in terms of π.

  1. Locate the asymptotes

    y=sec⁡(2x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  2. y=csc⁡(3x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  3. y=cot⁡(x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  4. y=cot⁡(4x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  5. y=tan⁡(3x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  6. y=tan⁡(4x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  7. y=csc⁡(2x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?
  1. Locate the xx-intercepts

    y=4sin⁡ ⁣(12x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  2. y=4cos⁡(x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  3. y=cos⁡ ⁣(32x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  4. y=−2cos⁡ ⁣(12x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  5. y=sin⁡ ⁣(32x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  6. y=3cos⁡ ⁣(13x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  7. y=− ⁣sin⁡ ⁣(13x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?
  1. List the vertical asymptotes on an interval

    List the vertical asymptotes of y=sec⁡ ⁣(x+π3) on [0,2π)
  2. List the vertical asymptotes of y=csc⁡ ⁣(x+2π3) on [0,2π)
  3. List the vertical asymptotes of y=tan⁡ ⁣(x−π6) on [0,2π)
  4. List the vertical asymptotes of y=tan⁡ ⁣(x+2π3) on [0,2π)
  5. List the vertical asymptotes of y=sec⁡ ⁣(x−π4) on [0,2π)
  6. List the vertical asymptotes of y=tan⁡ ⁣(x−3π4) on [0,2π)

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Trig Asymptotes and InterceptsAnswer keyVersion 2

Date Period

Answer each question in terms of π.

  1. Locate the asymptotes

    y=sec⁡(2x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π4, every π2
  2. y=csc⁡(3x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π3, every π3
  3. y=cot⁡(x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π, every π
  4. y=cot⁡(4x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π4, every π4
  5. y=tan⁡(3x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π6, every π3
  6. y=tan⁡(4x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π8, every π4
  7. y=csc⁡(2x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes?x=π2, every π2
  1. Locate the xx-intercepts

    y=4sin⁡ ⁣(12x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=2π, every 2π
  2. y=4cos⁡(x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=π2, every π
  3. y=cos⁡ ⁣(32x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=π3, every 2π3
  4. y=−2cos⁡ ⁣(12x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=π, every 2π
  5. y=sin⁡ ⁣(32x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=2π3, every 2π3
  6. y=3cos⁡ ⁣(13x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=3π2, every 3π
  7. y=− ⁣sin⁡ ⁣(13x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?x=3π, every 3π
  1. List the vertical asymptotes on an interval

    List the vertical asymptotes of y=sec⁡ ⁣(x+π3) on [0,2π)x=π6, 7π6
  2. List the vertical asymptotes of y=csc⁡ ⁣(x+2π3) on [0,2π)x=π3, 4π3
  3. List the vertical asymptotes of y=tan⁡ ⁣(x−π6) on [0,2π)x=2π3, 5π3
  4. List the vertical asymptotes of y=tan⁡ ⁣(x+2π3) on [0,2π)x=5π6, 11π6
  5. List the vertical asymptotes of y=sec⁡ ⁣(x−π4) on [0,2π)x=3π4, 7π4
  6. List the vertical asymptotes of y=tan⁡ ⁣(x−3π4) on [0,2π)x=π4, 5π4

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

How to do these

y=4sin⁡ ⁣(13x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts?

  1. Sine is zero when its input is π, so x/3 = π and x = 3π.
  2. Zeros of sine are π apart, so here they are 3π apart. The 4 in front changes nothing.

The answer is x=3π, every 3π.

Where students go wrong

Multiplying by b instead of dividing when b is a fraction. In sin(x/3) the input grows slowly, so the zeros spread out to every 3π, not every π/3.

Also called vertical asymptotes of tangent, zeros of sine and cosine, period and asymptotes or trig graph features.

What you can put on this worksheet

Where the asymptotes are
y=sec⁡(3x): where is the first asymptote to the right of the y-axis, and how far apart are the asymptotes? → x=π6, every π3
Where the x-intercepts are
y=cos⁡(3x): where is the first x-intercept to the right of the y-axis, and how far apart are the intercepts? → x=π6, every π3
Shifted graphs, listed on an interval
List the vertical asymptotes of y=sec⁡ ⁣(x−4π3) on [0,2π) → x=5π6, 11π6

Questions about these worksheets

Yes. Every asymptotes and intercepts of trig functions sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.

Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.

Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.

Algebra 2 is usually taken around 10th or 11th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.

Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.

That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the asymptotes and intercepts of trig functions questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.

Yes. There are three levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.

You pick from 3: where the asymptotes are, where the x-intercepts are and shifted graphs, listed on an interval. Tick as many as you want and set how many of each, or let it spread them evenly.

Forgetting to divide by b. The asymptotes of tan(3x) are three times as close together as those of tan x.