1) A good scale to use for this question would be $0-22,500 at least. You would start with 0 because if you have $0 then you will get no car. And all the way to at least $22,500 because that is the average cost of an SUV at that dealership within 10 years and to go any lower than that would make it inaccurate.
2) 500 would be the best interval to use for this question because 22,500 ends in 500 which means when you count by 500 you will easily get to 22,500 without counting by 1's.
<span>Let's solve this problem step by step.</span><span>
In Figure 1 you have the graph of this equation.
In fact, it is an egg curve as you can see, the question is asking for shifting
the curve vertically and horizontally, so what you need to do is the following:
First. Shifting
the curve horizontally (to the left).<span>
</span>Suppose you want to get the curve when the
center of the egg matches with the origin of the Cartesian plane, so you need
to shift the curve to the left. To do this add 40 units to the x-coordinate,
so: <span> </span> <span> </span>This shift is shown in Figure 2
Second. Shifting
the curve horizontally (to the right).<span>
</span>Suppose you want to shift the curve 40 units to
the right, then you need to subtract 40 units from the x-coordinate like
this: <span> </span> <span> </span>This shift is shown in Figure 3
Third. Shifting the
curve vertically (upward)<span>
</span>Suppose you want to shift the curve 40 units
upward, then you need to subtract 40 units from the y-coordinate like
this: <span> </span> <span> </span>This shift is shown in Figure 4
Fourth. Shifting the
curve vertically (downward)<span>
</span>Suppose you want to shift the curve 40 units
downward, then you need to add 40 units to the y-coordinate like this: <span> </span> <span> </span>This shift is shown in Figure 5</span>