4-7 Skills Practice Inverse Linear Functions Find the inverse of each relation. 1. x y 3. x y 1 8 x y –9 –1 2 6 –4 –2 –7 –4 3 4 –2 –1 –5 –7 4 2 0 1 –3 –10 5 0 2 0 –1 –13 4 2 2. 4. {(–3, 2), (–1, 8), (1, 14), (3, 20)} 5. {(5, (2, (–1, (–4, –3), –9), –15), –21)} 6. {(4, 6), (3, 1), (2, (1, 7. {(–1, 16), (–2, 12), (–3, 8), (–4, 4)} –4), –9)} Graph the inverse of each function. 8. 9. 10. Find the inverse of each function. 11. (x) = 8x 5 12. (x) = 6(x + 7) 13. (x) = + 9 f f f x – 14. (x) = + 15. (x) = 16. (x) = f x f f –16 17. LEMONADE Chrissy spent $5.00 on supplies and lemonade powder for her lemonade stand. She charges $0.50 per glass. a. Write a function to represent her profit per glass sold. P(x) b. Find the inverse function, (x). c. What do and (x) represent in the context of the inverse function? x d. How many glasses must Chrissy sell in order to make a $3 profit?
4-7 Skills Practice Inverse Linear Functions Find the inverse of each relation. 1. x y –9 –1 –7 –4 –5 –7 –3 –10 –1 –13 2. x y 1 8 2 6 3 4 4 2 5 0 3. x y –4 –2 –2 –1 0 1 2 0 4 2 4. {(–3, 2), (–1, 8), (1, 14), (3, 20)} 5. {(5, –3), (2, –9), (–1, –15), (–4, –21)} 6. {(4, 6), (3, 1), (2, –4), (1, –9)} 7. {(–1, 16), (–2, 12), (–3, 8), (–4, 4)} Graph the inverse of each function. 8. 9. 10. Find the inverse of each function. 11. f (x) = 8x – 5 12. f (x) = 6(x + 7) 13. f (x) = x + 9 14. f (x) = –16 + x 15. f (x) = 16. f (x) = 17. LEMONADE Chrissy spent $5.00 on supplies and lemonade powder for her lemonade stand. She charges $0.50 per glass. a. Write a function P(x) to represent her profit per glass sold. b. Find the inverse function, (x). c. What do x and (x) represent in the context of the inverse function? d. How many glasses must Chrissy sell in order to make a $3 profit?
4.7-Skills-Inverse-Linear-Functions.docx