Respuesta :
Answer: C). h(x) = 4x − 6
Step-by-step explanation:
all the others were incorrect
The function which has the greatest rate of change as x approaches infinity is g(x) = 5x2 − x + 7.
What is rate of change?
The rate of change of a function is the change in the value of one variable or quantity with respect to change in value of another variable.
The function given in the problem are,
- A). [tex]f(x) = 2x - 8[/tex]
- B). [tex]g(x) = 5x^2 -x + 7[/tex]
- C). [tex]h(x) = 4x - 6[/tex]
It has to determine which function has the greatest rate of change as x approaches infinity. For this let a number, (say 5) and check the values of all the function on this number.
For the first function at x=5,
[tex]f(5) = 2(5) - 8\\f(5) = 10 - 8\\f(5)=2[/tex]
For the second function at x=5,
[tex]g(5) = 5(5)^2 -5 + 7\\g(5) = 125 -5 + 7\\g(5) = 127[/tex]
For the third function at x=5,
[tex]h(5) = 4(5) - 6\\h(5) = 20 - 6\\h(5)=14[/tex]
Here, the value of the second function is greater when we compare the values of all the function.
Thus, the function which has the greatest rate of change as x approaches infinity is g(x) = 5x2 − x + 7.
Learn more about the rate of change here;
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