Relating Relationships Shown in Tables to Equations
Assignment
Activa
Modeling the Relationship between Variables
w
1
A submarine is descending at a rate of 7 feet per second. Which statements are true? Select all that apply.
Seconds(s)
Feet ()
The number of seconds causes a change in the
number of feet the sub descends.
7
O The number of feet the sub descends causes a
change in the number of seconds.
2
14
The equation is f = 7s.
3
21
The equation is s = 7f.
As the number of seconds increases, the number
4
28
of feet the sub descends increases.

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q