Respuesta :

a) point (8.28)
the time is 8 minutes
28 is the water level which is 28 cm

b) 3.5
the function for the situation is y=3.5x

the slope of the function is equal to the value of the unit rate

Answer:

See below ↓↓↓

Step-by-step explanation:

(a)

  • The point (8, 28) represents the fact that in 8 minutes time, the water level of the horse trough is at 28 cm

(b)

  • The unit rate will be equal to the slope of the graph
  • y = 3.5x is given as the equation
  • m = 3.5
  • Therefore, rate is 3.5 cm/min

(c)

  • On taking the slope of these two points it is equal to the slope of the line
  • Therefore, we can say that the rise in water level directly varies with time

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