Identify the domain and range
y=1/2x-4

domain: ( -∞,∞) , {x | x ∈ R}

range:( -∞,∞) , {y | y ∈ R}

Step-by-step explanation:

you got to find the domain by finding where the equation is defined. the range is set of values that correspond with the domain.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i