The correct answer would be D. The plot of the line 5x+2y = 8 is slanted right downwards. To predict, we write the equation into slope-intercept form as follows:
y = mx + b where m is the slope and b is the y-intercept form
5x + 2y = 8
y = -5x/2 + 4
As we can see, the slope is negative so the graph should slope to the right downwards.