Point A, because the square root of 81 is 9, and 83 is just slightly larger than 81. Point A is slightly more than 9, and all of the other points are out of range, so the answer is A
Maximum is 0 and minimum is -4. Due to the brackets, that means that this is where the value terminates. The parentheses next to the zero means equal to
They're equivalent expressions
-5m^2 = -125
m^2 = 25
m = SquareRoot (25)
m = 5
Equation has real number solution.
