Question

y = -x + x2


can some one plz tell me how to graph this?

Answer 1

y=-x+x^2
rewriting it.
y= x^2 - x
can you see the highest power/exponent is 2? This means that it will be a parabola.
and the coefficient(number) in front of x^2 term which is positive 1, tells us it is a positive parabola.
1x^2 = x^2 there is actually a 1 still in front of the x^2 but we just don't show it.

Find the x-intercepts,y-intercepts and turning point(vertex) and join them like a curve.
Note: there are not always x-intercepts or y-intercepts it depends.

Answer 2

That is a basic positive parabola, of the original form x^2 note that the coefficient is positive one, hence that the graph goes upwards. If it is negative, it will go downwards.