version of this software. 2'15"""5 pdate lii'erbal 1. Terry is skiing down a steep hill. Terry's elevation, E(t), in feet after t seconds is given by 503) = 3000 - 70t. Write a complete sentence describing Teny's starting elevation and how it is changing over time. 2. Maria is climbing a mountain. Maria's elevation, E), in feet after r minutes is given by EU) 2 1200 + 40L Write a complete sentence describing Maria's starting elevation and how it is changing over time. 3. Jessica is walking home from a friend's house. After 2 minutes she is 1.4 miles from home. Twelve minutes after leaving, she is {1.9 miles from home. What is her rate in miles per hour? 4. Sonya is currently 10 miles from home and is walking farther away at 2 miles per hour. Write an equation for her distance from home I hours from now. 5. A boat is 100 miles away from the marina, sailing directly toward it at 10 miles per hour. Write an equation for the distance of the boat from the marina after! hours. 5. Timmy goes to the fair with $40. Each ride costs $2. How much money will he have left after riding n n'des'? Algebraic For the following exercises, determine whether the equation of the curve can be written as a linear function. Z. y = 71x + 6 8. y = 3x - 5 3- y = 3x2 - 2 1o. 3:: + 5y = 15 u. 33:2 + 5y 7- 15 12. 3x + 5y2 2 15 3. 2x2 + By2 = 6 14. : 2y For the following exercises, determine whether each function is increasing or decreasing. 15. f (x) = 4x + 3 16. g (x) = 5x + 6 17. a (x) = 5 - 2x 18. b (x) = 8 - 3x 19. h (x) = -2x + 4 20. k (x) = -4x + 1 21. j (x) = 5x - 3 22. p (x) = 4x - 5 23. n (x) = - -x -2 24. m (x) = -2x+ 3