Warm Ups Term 3 Week 8

Warm Ups 2/27/17 For each function, make a table using x-values – 3, 0, and 5. Graph the function. a. f(x) = -2x – 6 b. g(x) = 2(1.5)x + 4 Factor the expressions: a. 256x2 – 96x + 9 b. 10x2 + 19x - 15

Warm Up 2/28/17 3. Use the quadratic formula to solve: 2y2 + 2y - 11 = 0 Find the inverse of f(x) = x – 5 4 (Hint: Switch the x and y and solve for y.)

Warm Ups 3/1/17 There currently (2017) have been approximately 121 billion Coca-Colas produced, and this number is increasing at a rate of 0.8% per year. How many will have been produced in 2020? 6. Solve for y: x = (5y – 2)3 + 6

Warm Up 3/2/17 7. Frank invested $2000 in his savings account in 1990 earning 6.5% interest. Write an equation to find the amount he will have in his account in 1998. Round to the nearest penny. When will he have at least $4000? 8. Find the rate of change for the function over the interval [- 1, 6]: f(x) = - 4(1.5)x

Warm Up 3/3/17 9. Jane bought a car that cost $24,520. Her vehicle depreciates at a rate of 9% each year. How many years will it take for Jane to have a car that is worth less than $5,000? How much is her car worth after 10 years? Find the rate of change over the interval [-2, 5] for the function: f(x) = 40(.5)x