you have to simplify it
then isolate the variable
then you will get x=6
To find that one, just look at the highest exponent. In the given equation that would be 4, so there can be at most 4 zeros in this function.
The answer is D, I think.
Hope this helps!
The volume is decided by using the equation V (volume)=a^3. This means you multiply the length x hight x width. So we would do 5 x 4 x 2 which equals 40.
Choose two points at gridline intersections and find the vertical and horizontal distance between them. The put the vertical distance over the horizontal distance (rise/run), and you have your slope
