This equation follows the format y=mx+b, where m is the slope of the line and b is the y intercept. In this question, the slope of the line is -2 and the y-intercept is 5.
The slope of the line is -2: this means that each point is down 2 and to the right 1 of each other.
The y-intercept is 5: this means that the line crosses the y-axis at 5.
The picture shows the graphed line.
Hope this helps!