Answer:
For the equation given:

for perpendicular lines, the relationship between their slopes is given by:

m1 is slope for one line, and m2 is slope for another line.

Therefore, equation is;

No
It is not proportional, because when x = 0, y does not equal 0.
when x = 0, y = -4. Therefore, it doesnt pass through the origin.
Answer: c
Step-by-step explanation:
Answer:
5°F
Step-by-step explanation:
The starting temperature is 5.
You get this answer when you add 12 to -7.
If the question is saying the temperature dropped 12°F every 8 hours then the answer would be 89°F because you multiply 12 and 8, then add 96 to -7.
Hope this helped a bit? :)
Answer:
I believe it is Option 1
Step-by-step explanation:
Since the fourth root of 81 will be 3 and of 16 will be 2.