Question

from a base evaluation of 9200 ft, a mountain peak in Colorado rises to a summit elevation of 14,363 ft over a horizontal distance of 15, 841 ft . find the grade of the peak

Answer 1

round to the nearest tenth as needed

Answer 2

is the question complete?

Answer 3

yes

Answer 4

use coordinates
(0,9200) ( 15841, 14363)

Answer 5

[ 14363 - 9200] / ( 15841 - 0

Answer 6

= .3259, which is 32.6% grade roughly

Answer 7

\[\frac{\Delta y}{\Delta x}\]
\[\frac{14636-9200}{15841-0}=\frac{5436}{15841}=0.3431\]

Answer 8

agreene you have a typo

Answer 9

its 14363 ,

Answer 10

what does that mean by final "grade" ?

Answer 11

well blah!
stupid typos... they make me sadface

Answer 12

i think grade is a steepness , multiply your slope by 100 ,

Answer 13

the percentage of slope?

Answer 14

and it says "find the grade"
if you prefer, the proper mathematical terminology is "Find the Gradient"
its the same as slope.

Answer 15

ohh!!

Answer 16

im guessing it means percent

Answer 17

Well, it's the same as slope in 2-space

Answer 18

then why u are multiply it by 100?

Answer 19

because it looks nicer ;)

Answer 20

it gives it oomph

Answer 21

lol, okay.

Answer 22

more info on getting out of simple maths and dealing with Gradients:
http://mathworld.wolfram.com/Gradient.html

Answer 23

saifoo, because kids dont like decimals. and truckers

Answer 24

, because truckers dont want to be told their slope is .32, so we say 32% to make them happy

Answer 25

lol.

Answer 26

so a 45% grade is pretty steep ,

Answer 27

err, i mean 100 % grade

Answer 28

100 % grade is 45 degrees or pi/4