Question

help me

Answer 1

http://prnt.sc/d688ep

Answer 2

@sooobored plz yar

Answer 3

what is the slope of the roof?

Answer 4

Slope is given in the problem

Answer 5

is it goona be -4/5?

Answer 6

Depends.

Answer 7

You don't really have to mind the slope.
Use similar triangles

Answer 8

its 4/5 or -4/5 depending on which side of the house you're looking at,
but that doesnt matter as much.

2nd question,
what is the physical representation of the slope? or what does it physically mean?

Answer 9

it's mean is that where the two points or coordinate interact with the graph I believe

Answer 10

not what im looking for,
it means for every 5 units in length, the height increases 4 units in height

Answer 11

in this case, the unit is ft

Answer 12

oh you mean so 5 left to the right and 4 unit down?

Answer 13

now we know the total width of the house is 40 ft

however the maximum height of the roof is at the center of so you only need to consider the roof projected length of 20 ft

Answer 14

or the slope gives the ratio between the length of the roof and the height of the roof

Answer 15

so basically the total given width is 40 ft and from the center of the roof the width be half which is 20 right?

Answer 16

yup

Answer 17

assuming the height of the roof is "h" then the ratio h/20 must be equal to the ratio or slope of 4/5
you can write this relation as such
\[\frac{4}{5} = \frac{h}{20}\]

Answer 18

i think i skipped a sentence there, any questions?

Answer 19

i got h=16

Answer 20

yes

Answer 21

thanks again:))

Answer 22

but if we got -4/5 then isn't it be -16?

Answer 23

It's the height. It can't be negative :)