1. Unit 3 Warm Ups Term 3 Week 1

2. Warm Up 1/4/16 1.Factor and solve each expression: 2.Solve: 10 ∑ k 2 + 3 K = 1 a. x 2 – 2x – 8b. x 5 – 9x 3

3. Warm Up 1/5/16 3. Factor and solve the expression: Factor only. 4.The wavelength w of a wave of a certain frequency varies directly as the velocity v of the wave, and w = 60 ft when v = 15 ft/s. Find w when v = 3 ft/s. a. x 4 + 2x 3 – 8x 2 b. 9x 2 – 25y 2

4. Warm Up 1/6/16 5.Determine if the data in the table is direct or inverse variation: 6. Factor and solve: 4x 2 + 15x + 9

6. Warm Up 1/7/16 7. The cost, c, of hiring a contractor to build a patio varies directly as the area, A, in square feet, of the patio. If c = $2832 when A = 80 ft 2. Find A when c = $4602. 8.Factor and solve the polynomials: a. X 2 + 2x = 24 b. 6x 3 – 33x 2 + 45x

7. Warm Up 1/8/16 9. The volume of gas, V, varies inversely as the pressure, p. If the volume is 10 L when the pressure is 1.5 atm, find p when v = 750 L. 10. Determine if the table shows a direct variation, an inverse variation, or neither. If the relationship is direct or inverse, identify the constant of variation, and write the variation equation. Show how you tested it. x3.75155 y1239