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The graph of the function, ƒ, is shown. Find all numbers, x, such that f(x) = 1.
A) ƒ(1) = 1, ƒ(2) = 1
B) ƒ(−1) = 1, ƒ(2) = 1
C) ƒ(1) = 1, ƒ(−2) = 1
D) ƒ(−1) = 1, ƒ(−2) = 1

The graph of the function ƒ is shown Find all numbers x such that fx 1 A ƒ1 1 ƒ2 1 B ƒ1 1 ƒ2 1 C ƒ1 1 ƒ2 1 D ƒ1 1 ƒ2 1 class=

Respuesta :

You know that f(x) or y is 1, and you are trying to find all the numbers on the x-axis that has a y coordinate of 1. Based on the graph, when x is 2 and -1, the y coordinate is 1, so your answer is B.

Answer:

B. [tex]f(-1)=1,f(2)=1[/tex]

Step-by-step explanation:

We have been given graph of a function. We are asked to find all values of x, such that [tex]f(x)=1[/tex].

To solve our given problem, we need to find the values of x, when [tex]y=1[/tex].

Upon looking at our given graph, we can see that at [tex]x=-1[/tex] and [tex]x=2[/tex], the value of the given function is 1, therefore, [tex]f(-1)=1,f(2)=1[/tex]and option B is the correct choice.

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