The reflection is happening over the x axis (horizontal axis)
Any y coordinate that is positive turns negative, and vice versa
For example: (1,2) ---> (1,-2)
In general, the rule is (x,y) ---> (x,-y)
So the answer is choice C
X-3y because 8x+2x-9x is x
The distance (r) between any two points (a,b) and (c,d) is :—
Putting the values,
The distance between the points is √41
It walks for 1.6 minutes or 1 min and 36 secs
Answer:
168 = L + 2W
And you want to maximize LW.
Which means you want to maximize W (168 - 2W), or 168W - 2W^2.
To maximize that, the derivative must go to zero.
0 = 168 - 4W, or W = 42. And L = 84. Done. :-)
Step-by-step explanation:
