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The variables x and y are related by the following equation x equals 2y2 plus 3 If x equals 53 what negative value of y makes this an equality?
Question: x = 2y2 +3 if x = 53 what NEGATIVE value of y makes this an equality
Answer:
x= 2y2 + 3
53 = 2y2 + 3
53 - 3 = 2y2
50/2 = y2
25 = y2
Take the Square Root of Both sides so we can get:
y = Square root of 25
so:
y = EITHER 5 or -5
Then the ANSWER is -5 (since we need the NEGATIVE Value of Y)
What else can I help you with?
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