If the value of "y" varies directly with "X" and y = -8 when x = 20, find "y" if x = -4.
1 answer:
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To find expanded form, we need to split up the digits. When you do that, you take one digit and cut off everything to the left of it, then make everything to the right zeros.
We don't need to keep the zeros.
We can check this by adding the numbers back up to get .
Answer:
x ≤ 1
Step-by-step explanation:
8 + 4x 12
4x 12 - 8
4x ≥ 4
Dividing both sides by 4 gives;
x ≤ 1