Mary was having a birthday. She thought the supplies would cost $35, but they actually cost $40. What was Mary's percent error?
2 answers:
You might be interested in
We are given the functions 
and 
.
let's consider some pairs in the graph of both functions.
in we have (-2, 4), (2, 4), (3, 9), (-5, 25)
in
we have (-2, -4), (2, -4), (3, -9), (-5, -25)
so for the same values of x, we have y's of equal value, but different sign.
This means that the functions are the reflections of each other with respect to the x-axis.
Answer: C <span>reflection over the x-axis</span>
let's consider some pairs in the graph of both functions.
in
in
so for the same values of x, we have y's of equal value, but different sign.
This means that the functions are the reflections of each other with respect to the x-axis.
Answer: C <span>reflection over the x-axis</span>