Question

A nick on the edge of a CD rotates to (−6, 5) during one song when represented graphically. What is the sine value of this function?
5 times square root 61 over 61
negative 6 times square root 61 over 61
negative square root 61
square root 5

Answer 1

@jdoe0001

Answer 2

\(\large {\begin{array}{llll}
(-6&5)\\
(x&y)\\
(a&{\color{blue}{ b}})
\end{array}\qquad
\begin{array}{llll}
{\color{purple}{ c}}^2=a^2+b^2\implies {\color{purple}{ c}}=\sqrt{a^2+{\color{blue}{ b}}^2}
\\ \quad \\
\bf sin(\theta)=\frac{{\color{blue}{ b}}}{{\color{purple}{ c}}}
\end{array} }\)