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A scuba diver is 30 feet below the surface of the water 10 seconds after he entered the water and 120 feet below the surface after 40 seconds. What is the scuba diver's rate of change (include the units)?
Find slope(Rate of Change)

Respuesta :

mhanifa

Answer:

  • 3 feet  per second

Step-by-step explanation:

The rate of change is:

  • m = the change in depth / the change in time =
  •      (120 - 30) / (40 - 10) =
  •      90 / 30 =
  •      3 feet/second

Take 2 points

  • (10,30)
  • (40,120)

Rate of change=Slope:-

[tex]\\ \rm\hookrightarrow m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\\ \rm\hookrightarrow m=\dfrac{120-30}{40-10}[/tex]

[tex]\\ \rm\hookrightarrow m=\dfrac{90}{30}[/tex]

[tex]\\ \rm\hookrightarrow m=3ft/s[/tex]