Answer:
D
Explanation:
To find the range of the function (f + g)(x), we need to evaluate the sum of f(x) and g(x) for each x value given in the table.
Given data:
f(x) = x^2 + 2x - 5
x: -6, -3, -1, 4
g(x): 16, 10, 6, -4
To find (f + g)(x), we substitute the x values into f(x) and g(x) and add them together:
For x = -6:
(f + g)(-6) = f(-6) + g(-6) = (-6)^2 + 2(-6) - 5 + 16 = 36 - 12 - 5 + 16 = 35.
For x = -3:
(f + g)(-3) = f(-3) + g(-3) = (-3)^2 + 2(-3) - 5 + 10 = 9 - 6 - 5 + 10 = 8.
For x = -1:
(f + g)(-1) = f(-1) + g(-1) = (-1)^2 + 2(-1) - 5 + 6 = 1 - 2 - 5 + 6 = 0.
For x = 4:
(f + g)(4) = f(4) + g(4) = (4)^2 + 2(4) - 5 - 4 = 16 + 8 - 5 - 4 = 15.
The range of (f + g)(x) is the set of all possible outputs for the function. By evaluating (f + g)(x) for each x value, we have the following results:
(f + g)(-6) = 35
(f + g)(-3) = 8
(f + g)(-1) = 0
(f + g)(4) = 15
The range is the set of all these output values, which are {35, 8, 0, 15}. Thus, the range of (f + g)(x) is D. ℝ, which represents all real numbers.