The illustration below shows the graph of yyy as a function of xxx. Complete the following sentences based on the graph of the function.
This is the graph of a

function.
The yyy-intercept of the graph is the function value y=\:y=y, equals
.
The smallest positive xxx-intercept of the graph is located at x=\:x=x, equals
.
The greatest value of yyy is y=\:y=y, equals
.
For xxx between x=-\pix=−πx, equals, minus, pi and x=-\dfrac{\pi}{2}x=−
2
π
​
x, equals, minus, start fraction, pi, divided by, 2, end fraction , the function value y\:yy

\:000.