which is a valid prediction about the continuous function f(x)?\n○ f(x) ≤ 0 over the interval (-∞, ∞).\n○…

which is a valid prediction about the continuous function f(x)?\n○ f(x) ≤ 0 over the interval (-∞, ∞).\n○ f(x) > 0 over the interval (-1, ∞)\n○ f(x) ≥ 0 over the interval -1, 1\n○ f(x) < 0 over the interval (0, 2)\n\nx\tf(x)\n-3\t-15\n-2\t-5\n-1\t0\n0\t5\n1\t0\n2\t-5
Answer
Explanation:
Step1: Analyze each option
Check the values of (f(x)) in the given table for each interval.
Step2: Check option 1
For (x = 0), (f(0)=5>0), so (f(x)\leq0) over ((-\infty,\infty)) is false.
Step3: Check option 2
When (x = 2), (f(2)= - 5<0), so (f(x)>0) over ((-1,\infty)) is false.
Step4: Check option 3
When (x=-1), (f(-1) = 0); when (x = 0), (f(0)=5>0); when (x = 1), (f(1)=0). So (f(x)\geq0) over ([-1,1]) is true.
Step5: Check option 4
When (x = 0), (f(0)=5>0), so (f(x)<0) over ((0,2)) is false.
Answer:
(f(x)\geq0) over the interval ([-1,1])