f(x)=x
f(x)=3x^2 + 5x - 6
f(x)=10x
f(x)=5x-6
f(x)=x^2
f(x)=4
f(x)=10x - 7
f(x)=x^2 - 6x
1
2x-6
10
0
5
2x
6x + 5