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Chapter 5 Section 4

Chapter 5 Section 4. Writing a Function Rule. Writing a Rule from a Table. y = x+2 B. y = x-2 C. y = x+4 D. y = 2x E. y = x 2. Word Problems. A carpenter buys finishing nails by the pound. Each pound of nails costs $1.19.

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Chapter 5 Section 4

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  1. Chapter 5 Section 4 Writing a Function Rule

  2. Writing a Rule from a Table • y = x+2 B. y = x-2 C. y = x+4 D. y = 2x E. y = x2

  3. Word Problems • A carpenter buys finishing nails by the pound. Each pound of nails costs $1.19. a. Write a function rule to describe this relationship. b. How much do 12lb of finishing nails cost?

  4. Word Problems • Suppose you borrow money from a relative to buy a lawn mower that costs $245. You charge $18 to mow a lawn. Write a rule to describe your profit as a function of the number of lawns mowed. • (total profit) = $18 times (lawns mowed) - (cost of mower) • n = number of lawns mowed • P(n) = total profit • P(n) = 18n - 245

  5. Assignment • Page 256 • Numbers 1-21 odd

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