How do I use completing the square to describe the graph of #f(x)=30-12x-x^2#?
1 Answer
Sep 1, 2015
To plot the graph, find
y-axis intercept:
x-axis intercept:
Since this is a quadratic equation there is one stationary point. In this case it is a maximum since the coefficient of highest order
So:
graph{30-12x-x^2 [-20, 10, -100, 100]}