About the minus sign with 16, square root of -1 is an imaginary number i(iota). Also we know that square root of -16 will be multiplication of square root of -1 and square root of 16. So the final answer becomes, + or - 4i. Hope this helps
Answer:
i gotchu. 90 degree clockwise rotation
Step-by-step explanation:
Answer:

Step-by-step explanation:

add
to both sides

add
to both sides

divide both sides by 


Answer:
x = 0
Step-by-step explanation:
The equation of a vertical line parallel to the y- axis is
x = c
where c is the value of the x- coordinates the line passes through
The only equation in this form is
x = 0 ( the equation of the y- axis )