Given the equation:
y = -45x + 270
To find th slope, use the slope intercept form:
y = mx + b
Where m is the slope.
Now, compare both equations:
y = mx + b
y = -45x + 270
The slope is of the line:
m = -45
The slope represents the number of driving miles per hour.
Therefore, the slope is -45 and it represents the number of drumber of dr