Question

Which could be the entire interval over which the function

f(x), is positive?
0 (-0, 1)
O (-2, 1)
0 (-0,0)
O (1,4)

Answer 1

The entire interval over which the function f(x) is positive is [0, 20]. Therefore, the entire interval over which the function f(x) is positive is [0, 20].

Step-by-step explanation:

The given function is a horizontal line, which means that it has a constant value.

Since the function is positive, we need to find the interval where the constant value is positive.

Since the x-values are restricted to 0 ≤ x ≤ 20, we need to look at that interval.

Since the function is a horizontal line, it is positive for all values of x in that interval.

Therefore, the entire interval over which the function f(x) is positive is [0, 20].