Question 164710
1. linear because a graph of f(x) is a straight line and it is of the 1st degree.
2. quadratic because it is a polynomial equation of the 2nd degree. Its graph is a parabola.
f(x)=x^2-x-20
.
Ed
.
{{{graph(500,500,-10,10,-10,10,-5x-4)}}}
.
{{{graph(500,500,-10,10,-20,20,x^2-x-20)}}}