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Determine the value of y, if x is -2 . y=x^(2)-5 Answer:

Determine the value of y y , if x x is −2-2 .\newliney=x2−5 y=x^{2}-5 \newlineAnswer:

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Full solution

Q. Determine the value of y y , if x x is −2-2 .\newliney=x2−5 y=x^{2}-5 \newlineAnswer:
  1. Substitute xx in equation: Substitute the value of xx into the equation.\newlineWe are given x=−2x = -2 and the equation y=x2−5y = x^2 - 5. We need to substitute −2-2 for xx in the equation.\newlineCalculation: y=(−2)2−5y = (-2)^2 - 5
  2. Calculate square of −2-2: Calculate the square of −2-2. The square of −2-2 is (−2)×(−2)=4(-2) \times (-2) = 4. Calculation: y=4−5y = 4 - 5
  3. Subtract 55 from result: Subtract 55 from the result of the square of −2-2. Now we subtract 55 from 44 to find the value of yy. Calculation: y=4−5=−1y = 4 - 5 = -1

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