Algebra 1 Warm Ups Dec. 4th

12/4 Which of the following is true about the quadratic function? If the x value is negative, then the y-value is positive. If the x-value is negative, then the y-value is negative If the x-value is less than -2, then the y-value is negative. If the x-value is less than -2, then the y-value is positive. 2. The path of of ball can be modeled by What is the initial height of the ball? What is the maximum height of the ball? 3. Graph 2x - y = 5

12/5 Which of the following is in intercept form? 2. What are the x-intercepts of ? 3. Graph 3x - 2y = 10.

12/6 A function is created to model the total cost of buy x items at the grocery store. If the number of items is the input and the cost is the output, then which is true of the domain of the function? The domain is the set of all real numbers The domain is the set of all positive integers. The domain is the set of all non-negative integers. 2. Describe the transformation from f(x) to g(x). 3. What are the zeroes of f(x) in the above problem?

12/7 A picture frame is a uniform width around a picture. The picture has a length of 5 inches and a width of 7 inches. If the area enclosed by the picture and the frame is 100 square inches, then which equation would help you find x, the width of the frame? (x+5)(x+7) (2(x+5)(x+7) (2x+5)(2x+7) 2. Complete the square for the expression: 3. When will the height of the ball reach 20 feet if its height is modeled by f(x) =

After the quiz…. Error Analysis on last week’s quiz. Start error analysis on THIS WEEK’S quiz. Next you, you will have your test and will not have time in class to do it until 12/18-12/19. Work on extra credit puzzle. There are extra copies on the table.