Answer:
b. (1, 13).
Step-by-step explanation:
Here's a pic of my work. You can put either equation on the other side of the equal sign, because they both equal Y. therefore, they equal each other.
Answer:
<u>Part A</u>:
(
is equal to all real numbers)
<u>Part B</u>:

Step-by-step explanation:
<u>Part A</u>:
Given
, combine like terms:

Add 7 to both sides:

Since this is merely a true statement for all real numbers (reflexive property), this equation is true for any real value of
.
Therefore,
(
is equal to all real numbers).
<u>Part B</u>:
Using arbitrary values
as requested in part B, verify:

Answer:
c
Step-by-step explanation: