Algebra 1 Warm Ups 1/22

2/5 Which of the following is true based on the function shown? The function is non-linear and always increasing. The function is decreasing from negative infinity to 1 and increasing from 1 to infinity. The function is decreasing from negative infinity to -2 and increasing from -2 to infinity. 2. Simply the expression completely: (2x-1) + (4x-1)(x-5) 3. Solve for y:

2/6 Which of the following is a solution to the system of equations shown? (-5, -4) y = 3.5x + 1 (1, 3.5) 2. Barry is saving money to buy a private jet. The following equation shows how much money he will have after t years. What percentage of his initial deposit is Barry earning each year? How many years will it take Barry to have enough money if the jet costs $3,000,000?

2/7 Name a value of b that would make the following function represent exponential decay. 2. Which of the following represents a solution to the equation? (0, -49) (2, -15) (1, 7/3) (0, 7/3) 3. Solve for d:

2/8 Which of the following represents the quadratic function shown? f(x) = (x-6)(x+3) f(x) = (x+6)(x-3) f(x) = (x-1)(x+20) f(x) = (x+1)(x-20) Which of the following is NOT true about the function shown? It is increasing from 1.5 to infinity. It is increasing from negative infinity to 1.5. The y-intercept is -18. 3. What number do you need to add to both sides of the function to complete the square? 2. On the first day, Callie had 10 dogs to puppy sit. On the second day, she had 20. On the third, she had 40. Which represents how many dogs she had after d days? 3. A lake offers canoe rentals. It costs the same per hour, plus a flat damage deposit for each rental. It costs $50 for a 2 hour rental and $118 for a 6 hour rental. How much is the damage deposit? How much does each additional hour cost?