Answer:
y ≥ 10
Step-by-step explanation:
y = 3 * (x - 5)² + 10
x - 5 = √(y - 10)/3
x = √(y - 10)/3 +5
since so long as the number under the √ is not an imaginary number (negative), x is exited
∴ y≥10 is the range of y
