SOLUTION: Sketch the graph of the function y = 3 - 3x2. Label all intercepts.
Quadratic Equations and Parabolas
-> SOLUTION: Sketch the graph of the function y = 3 - 3x2. Label all intercepts.
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Sketch the graph of the function y = 3 - 3x2. Label all intercepts.
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y = 3 - 3x^2
The vertex is: (-b/2a,f(x)) so the vertex is: (0,3)
Now, pick other points to plot .... should look like the graph below:
SOLVE quadratic equation with variable
(in our case
) has the following solutons:
For these solutions to exist, the
should not be a negative number.
First, we need to compute the discriminant
Discriminant d=36 is greater than zero. That means that there are two solutions:
can be factored:
Again, the answer is: -1, 1. Here's your graph: