The slope is -7 and we are given the point (0,8)
Since the x value is 0, the y value is the y-intercept of the line, which is 8.
With this information, we can write the equation of the line in slope-intercept form, y = mx+b (where m is the slope and b is the y-intercept)
y = -7x + 8
Let me know if you need any clarifications, thanks!