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
step-by-step explanation:
you can draw the graph by two values :
y = 2x-4
x=0 : y = 2(0)-4
y = -4
x=2 : y = 2(2)-4
y = 0
you have two points : a(0 ; - 4) b(2 ; 0)
look the graph :