What you need to know
Check yourself against these “I can” statements.
- I can describe how changing a, b and c changes the graph of y = a cos(bx) + c
- I can find the values of a, b and c from a trigonometric graph
Practise this topic
5 resourcesEquations of Trig Graphs
Find y = a sin(bx + c) + d or y = a cos(bx + c) + d from the graph and one or two marked points: one of a, b, c, d, then two and three (never b and c together), then all four, then challenges (the same graph as a sine and as a…
⬢ BlockbustersEquations of Trig Graphs Blockbusters
Blockbusters with the questions from the Equations of Trig Graphs worksheet: choose its levels for the ordinary hexagons and for the harder ★ ones. Show the answer and the worked solution, or play against the computer with…
🔤 Fill the GapsFill the Gaps: Maths Vocabulary
A sentence explaining one of the unit’s key words, with gaps. Pick the right word for each gap from the words scattered round it: the right ones and plenty of wrong ones. A deck for every unit.
🧮 ToolGraph Plotter
A graphing calculator: type y = f(x), x = g(y), implicit relations such as x² + y² = 25, inequalities (shaded, dashed for < and solid for ≤), parametric and polar curves, points and tables, functions f(x) = … with f′(x), and…
🔗 MatchingTransforming Trig Graphs: Matching
Twelve graphs of sin x, cos x and tan x (0° to 360°), each with a key point marked, in look-alike pairs: drag each equation onto its graph. Easy: one transformation each. Medium: two, never both inside the brackets. Hard: 24…
These are the pages for Transforming trigonometric graphs in the GCSE scheme of work, following Pearson Edexcel GCSE (9–1) Mathematics, Higher tier (1MA1). Open this topic in Mr Wells Maths to see it alongside the rest of the course.