For drawing a graph of an equation, first of all convert the given equation in terms of x. That means y = function of x.
Then give arbitrary values to x in the given equation, you will get corresponding values for y.
Using these values, plot the graph.
The graph is,
Question : 2
f(x)= -x^2+3
Graph is,
Question: 3
f(x)= x^2-2
Graph is,
Question: 4
f( x) =(x-2)^2
= x^2 - 4x + 4,
The graph is,