The graph of $y={k}^{x}$, where $k$ is a positive constant, is shown above.

Find the value of $k$.

The graph of $y=sinx^{\circ}$ for values of $x$ from $—270to+270$ is shown above.

On the same axes, draw the graph of $y=1—sinx^{\circ}$ for values of $x$ from $—270to+270$