hi Iam taking precalculus this semester and this semester we

hi I\'am taking precalculus this semester and this semester we are studying quadratic functions and our professor ask us that we need to find additional points I really don\'t understand that part

Solution

Additional points are those points that lie on the graph.
For example a vertex is a point that lies on a graph.
Similarly suppose you have a quadratic equation
y=2x^2+x+1
for x=1 we get y=2(1)^2+1+1=2+1+1=4
hence (1,4) is a additional point so you can find as many points as you want by taking some random value of x
These are helpful when we have to graph our quadratic equation.