The answer here is C. Let's proof.
Since we are dealing with whole numbers, select a constant for x to satisfy that y will result a whole number.
If x = 1, then the function would be 1 + 4y = 9. Solving for y,
4y = 9 - 1
4y = 8
y = 2
In ordered pair, that is (1,2)
Next, if x = 5, then 5 + 4y = 9. Solving for y,
4y = 9 - 5
4y = 4
y = 1
In ordered pair, that is (5,1).
Lastly, if x = 9, then 9 + 4y = 9. Solving for y,
4y = 9 - 9
y = 0/4
y = 0
In order pair, that is (9,0).
<span>The first step in determining the answer will need to be to convert the weight from imperial to metric.
12lbs ~ 5.44311kg
Then we need to look at the total amount of amoxicillin needed. At 5mg/kg is ~27.5mg twice per day.
The concentration is 50mg per ml. Knowing that the cat needs around 55mg, that leads us to 1.1ml daily.</span>
The answer will be (3/4)>-7 1/2
Input is 4
so y=-2(4)+11
y=-8+11
y=11-8
y=3
Ans
(4,3)