For the function y = 3x^2 + 12x + 9 find:

A. Whether the curve is concave up or down

B. The y-intercept

C. The x-intercept

D. The Vertex

E. The Maximum or Minimum value.

You can put this in a calculator. I am not good with math but I am sure you can put it in a calculator. Consider tutoring.

Look at the term in front of the x^2. If it is positive it is concave up. If it is negative, it is concave down.

To find the y intercept, set x=0 and solve.

To find the x-intercept, set y=0 and solve.

To find the vertex, use

That is the x coordinate of the vertex. PLug that number back into your function to find the y-coordinate.

The vertex will be your minimum value.