Step-by-step explanation:
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Easiest way to solve this is to try plugging in the values from the table into the equations
Let’s try y = x + 4
The first coordinates from the table says
(-9 , -5 )
-5 = -9 + 4
-5 = -5
They match, so y = x + 4 is the right answer. You can try plugging in the other variables if your still uncertain
Answer:
To get an expression relating to x you need to have x alone on one side of your equation. ie x =
Try this:
rx - st = r
remove st from the rx side
rx = r + st
now divide by r
x = (r + st)/r
You now have your expression relating to x