Because it doesn’t have a symmetry line
well its because its -x2 this cannot be graphed
x is squared
General equation of a line is
y = mx + 2
It has to be a linear equation
y = -x² + 1 is clearly not a linear because x is squared
x is squared. is correct.
y = mx + b represents a line. The x term is to the first power. In y = −x2 + 1, the x is squared.
that would make a parabola
A is the answer