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Big Ideas Math Integrated I, 2016 View details

2. Writing Equations in Point-Slope Form

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Exercise 42 Page 176

The product of a number and its reciprocal is 1.

-1/8

Practice makes perfect

The product of any nonzero real number and its reciprocal is 1. x*1/x=1 Therefore, the reciprocal of -8 is - 18. Let's check that this is true by calculating the product.

-8* (-1/8)? =1

MultNegNegOnePar

- a(- b)=a* b

8*(1/8)? =1

DenomMultFracToNumber

8 * a/8= a

1=1 ✓

We were able to confirm that the reciprocal of -8 is - 18.