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Question:
Answer:
f(−10)
To find f(-10) we choose a function that has x value -10
-10 <= -5 so we use f(x) = 2x + 1
Plug in -10 for x
f(-10) = 2(-10) +1 = -20 +1 = -19 So f(-10) = -19
Now find f(2)
2 lies between -5 and 5 so we use f(x) = x^2
f(x)
f(2) = 4 . so f(2) = 4
f(−5)
-5 is equal to -5 so we use f(x) = 2x + 1
f(-5) = 2(-5) + 1 = -10 + 1 = -9
So f(-5) = -9
f(−1)
-1 lies between -5 and 5 so we use f(x)=
f(-1)= = 1 so f(-1) = 1
f(8)
8 is greater than 5 so we use f(x) = 3 – x
f(8) = 3 – 8 = -5 so f(8) = -5
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