How do you graph #y=-3x^2-4x#?
1 Answer
You'll get a parabola.
Explanation:
This function is a Quadratic (maximum degree of
Observing the coefficient of
Now let us try to find interesting points of your parabola that will help us to plot it:
1] y-intercept:
set
2] x-intercept:
set
so you have two solutions:
so the x- intercepts will be:
3] Vertex: this point represents the highest point reached by your parabola. the function can be written as
where in your case:
The
The
Graphically:
graph{-3x^2-4x [-11.25, 11.25, -5.625, 5.625]}