The y intercept is (0,-5)
The maximum is at (3,4)
There are two real solutions (roots)
Answer:

Step-by-step explanation:
This question is asking for slope-intercept form which is y=mx+b, where m is the slope and b is the y-intercept. First, find the slope; this can be done in two ways, counting change in y and x then dividing, or using the formula
. Either way for this graph the slope comes out as -1/3. Next, find the y-intercept, this is where the line intersects with the y-axis. In this case, the line touches the axis at 5, therefore 5 is the value of b.
Volume of 1 cube = s^3
s= side
so, vol = (1/4)^3 = 1 / 64
Now, there are 4 cubes:
So, volume of 4 cubes = (1 / 64 ) x 4 = 1 /16
Unit will obviously be foot^3