Question

Find the values of x that need to be excluded from the domain of the sum function.

f(x) = (2x) / (2x + 7)

Answer 1

To find the values of x that need to be excluded from the domain of the sum function f(x) = (2x) / (2x + 7), set the denominator equal to zero and solve for x. The value -7/2 should be excluded from the domain.

Step-by-step explanation:

To find the values of x that need to be excluded from the domain of the sum function f(x) = (2x) / (2x + 7), we need to determine the values of x that make the denominator equal to zero. This is because division by zero is undefined. So, we set the denominator equal to zero and solve for x:

2x + 7 = 0
x = -7/2

Therefore, the value -7/2 should be excluded from the domain of the function.