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Determine the value of y, if x is -4 . y=x^(2)-5 Answer:

Determine the value of y y , if x x is −4-4 .\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 −4-4 .\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=−4x = -4 and the equation y=x2−5y = x^2 - 5. We need to substitute −4-4 for xx in the equation.\newlineCalculation: y=(−4)2−5y = (-4)^2 - 5
  2. Calculate square of −4-4: Calculate the square of −4-4. The square of −4-4 is 1616 because (−4)×(−4)=16(-4) \times (-4) = 16. Calculation: y=16−5y = 16 - 5
  3. Subtract to find yy: Subtract 55 from 1616 to find the value of yy. We need to perform the subtraction to find the value of yy. Calculation: y=16−5=11y = 16 - 5 = 11

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