Answer:
The answer would be y ≤ 1
Step-by-step explanation:
To find this, use the formula for the x value of the vertex (-b/2a), in which the coefficient of x^2 is a and the coefficent of x is b.
-b/2a = -0/2(1) = 0/2 = 0
Now that we know the value of x is 0, we look for the value of y.
y = -x^2 + 1
y = -0^2 + 1
y = 0 + 1
y = 1
So the vertex is at 1. Since we see it is a negative value, we know that is a maximum.
