New Zealand
Level 7 - NCEA Level 2

# Finding equations of sine and cosine curves

## Interactive practice questions

Determine the equation of the graphed function given that it is of the form $y=a\sin x$y=asinx or $y=a\cos x$y=acosx, where $x$x is in degrees.

Easy
Approx a minute

Determine the equation of the graphed function given that it is of the form $y=a\sin x$y=asinx or $y=a\cos x$y=acosx, where $x$x is in degrees.

Determine the equation of the graphed function given that it is of the form $y=c+\cos x$y=c+cosx or $y=c+\sin x$y=c+sinx, where $x$x is in degrees.

Determine the equation of the graphed function given that it is of the form $y=c+\cos x$y=c+cosx or $y=c+\sin x$y=c+sinx, where $x$x is in degrees.

### Outcomes

#### M7-2

Display the graphs of linear and non-linear functions and connect the structure of the functions with their graphs

#### 91257

Apply graphical methods in solving problems