Q. If f(x)=8x3−5, what is the value of f(−1), to the nearest ten-thousandth (if necessary)?Answer:
Substitute x with −1: To find the value of f(−1), we need to substitute x with −1 in the function f(x)=8x3−5.Calculation: f(−1)=8(−1)3−5=8(−1)−5=−8−5=85.
Calculate f(−1): Now, we need to express the result as a decimal rounded to the nearest ten-thousandth.Calculation: 85 as a decimal is 0.625.
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