Indicate whether the graph of the equation y = x^2 - 4x + 1 opens up, down, left, or right. Explain how u know?

it will be a circle about (2,0) with a radius of 1 unit ... as it is an equation of the circle (x-2)^2=1 it will intersect x-axis twice you may verify by putting different points and if you are looking for doentary kind of answer you may refer to any chapter like circle or some std. 12th standard book....