Answer: (-1,3)
(0,1)
(1,-1)
(2,-3)
Step-by-step explanation: For example, you put -1 as x in the equation, and then solve, your answer would be the y, and the number you inputted would be the x.
That is the pH scale
pH = - log of the concentration of hydrogen ions in a solution.
Answer:
12 and 1/2<u>
</u>
Step-by-step explanation:
Answer:
$72
Step-by-step explanation:
First yard:
weeded and mowed
12 + 20 = 32
Second yard:
mowed and edged
20+ 15 = 35
Then he got a tip of 5
Total
32+35+ 5
72
Both linear and proportional because as x increases y decreases at the same rate