Answer:
A sine function is a trigonometric function. If you want to sketch the graph of the basic sine function, keep in mind the key points in one period: the intercepts, maximum points, and minimum points. So the graph of
is shown in the figure below.
The intercepts:
![(0,0), (\pi,0) \ and \ (2\pi,0)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7cv4p3o4c1aexkgnfptxclgh11wucondry.png)
Maximum point:
![((\pi)/(2),7)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/g9vwi7bs33vy8qi8oqhsdt7rymgfdnmo4d.png)
Minimum point:
![((3\pi)/(2),-7)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/l7aflw7y04ejngblut1oj93ikp7lk2kfz5.png)
Period:
![2\pi](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ia5d2u08w0ivg4tfm7kmao3az9h7oxlde3.png)
Amplitude:
![7](https://img.qammunity.org/2020/formulas/mathematics/high-school/atrhnyazyqsnuk8cliqj3qktp6u8fl078s.png)