### Home > CCA > Chapter 11 > Lesson 11.3.4 > Problem11-110

11-110.

Find the lowest point of the graph of the function $f(x)=3x^2+15x−18$. Explain how you know it is the lowest.

Change the equation into graphing form. Start by dividing both sides by $3$.

Using the graphing form, you can find the vertex, which is the lowest point of this function.

$(−2.5,−36.75)$