Answer:
B
Step-by-step solution:
The graph is attached.
The answer choices are:
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
Solution:
We want the "x" values where f(x) = 1, which means the functional value (y) would be "1". If we draw a horizontal line at y = 1, we will see at which x-value it occurs.
If you do it, we can see that the intersections occur at x = 2 and x = -1
Looking at the answer choices, we see that we can eliminate A, C, and D.
Correct answer choice is B
