The second brand is a better buy because if you bought 3 cans of the first can of corn, it would be $1.00. But, if you bought 3 cans of the second can of corn, it would be $0.90.
So, the second can of corn is the best to buy.
Step-by-step explanation:
x²y = k, where k is a real constant.
When x = 3.5, y = 8.
=> (3.5)²(8) = k, k = 98.
When y = 8/9,
we have x²(8/9) = (98).
=> x² = 110.25
=> x = 10.5 or x = -10.5.
Since we want the negative value,
the answer is x = -10.5.