Answer:
y = -3x + 4
Step-by-step explanation:
We can readily see that the straight line graph crosses the y-axis at (0, 4). This is the "y-intercept."
If we move along the graph from this (0, 4) to (3, -5), x increases by 3 and y decreases by 9. Thus, the slope of this line is m = rise / run = -9/3 = -3.
Thus, the slope-intercept form of the equation of this line is
y = -3x + 4.
