A mountain peak rises 4504 ft from sea level over a horizontal distance of 15,855 ft. Find the grade of the peak.

**Solution:-**

To find the grade of the peak, find the slope of the peak and express it as a percent.

Recall that to find the slope, m, divide the change in y by the change in x.

In other words, m = . Now apply the definition of slope.

m = (rounded to hundredths)

Now, express the slope as a percent. To convert 0.28 to a percent, multiply 0.28 by 100 and attach a percent sign.

= 28%

The grade of the peak is 28%.