Describing trends in scatter plots1The graph below shows the relationship between life expectancyand infant mortality rate in a
random sample of countries,Which statement is the best description of the associationbetween these variables?Choose 1 answerCountries with higher infant mortality rates tended to have longerlife expectanciesCountries with higher infant mortality rates tended to haveshorter life expectancies.There is no clear relationship between infant mortality rates andlife expectancyWhich statement is the best description of the association between these variables
1 answer:
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Answer:
The average rate of change of the function from x=1 to x=2 will be: 10.5
Step-by-step explanation:
Given the function
at x₁ = 1,
f(x₁) = f(1) = -14/(1)² = -14/1 = -14
at x₂ = 2,
f(x₂) = f(2) = -14/(2)² = -14/(4) = -3.5
Using the formula to determine the average rate of change at which the total cost increases will be:
Average rate of change = [f(x₂) - f(x₁)] / [ x₂ - x₁]
= [-3.5 - (-14)] / [2 - 1]
= [-3.5 + 14] / [1]
= 10.5 / 1
= 10.5
Therefore, the average rate of change of the function from x=1 to x=2 will be: 10.5