Problema Solution
Can you help with this word problem? Thank you.
Does the graph of this equation open up or down? How did you determine this?
-0.2x^2 + 12x + 11
Answer provided by our tutors
The graph of this equation opens downward. If the number infront of x2 is negative, a graph opens down; if it is positive a graph opens up. In this case it is -0.2 so it will open down. This value is also refered to as 'a' when an equation is in standard form, ax2+bx+c = 0