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.
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Sigma Prep · sigmaprep.io/worksheets Name Trig Asymptotes and Intercepts Date Period Answer each question in terms of π.
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.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
How to do these
: where is the first -intercept to the right of the -axis, and how far apart are the intercepts?
- Sine is zero when its input is π, so x/3 = π and x = 3π.
- Zeros of sine are π apart, so here they are 3π apart. The 4 in front changes nothing.
The answer is , every .
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
- : where is the first asymptote to the right of the -axis, and how far apart are the asymptotes? → , every
- Where the x-intercepts are
- : where is the first -intercept to the right of the -axis, and how far apart are the intercepts? → , every
- Shifted graphs, listed on an interval
- List the vertical asymptotes of on →