The Cosine Function (Grade 11 NSC Matric Mathematics): Flashcards

$360°$

$1$

$[-1; 1]$

$(0°; 1)$ - starts at maximum value

$\frac{360°}{|k|}$

Vertical shift: up if $q > 0$, down if $q < 0$

Changes amplitude to $|a|$; reflects if $a < 0$

$[q - |a|; q + |a|]$

Shifts left by $p$ degrees

$\cos(-θ) = \cos θ$