8.9 Solve using the quadratic formula. 1. x2 6x 0 2. x2 20 0 a: b: c: a: b: c: x x 3. 2x2 4 0 4. x2 18 0 a: b: c: a: b: c: Find the number of real solutions of each equation using the discriminant. 5. x2 5 0 6. x2 25 0 7. x2 7 0 b2 2 4 b2 2 4 b2 ___________ ___________ ___________ ======================================================================== Use a table of values to graph y x 2 2. x 2 1 0 1 2 y Matching Match each vocabulary term with its definition. a. linear equation b. minimum c. dilation d. parabola
8.9 Solve using the quadratic formula. 1. x2 6x 0 2. x2 20 0 a: b: c: a: b: c: x x 3. 2x2 4 0 4. x2 18 0 a: b: c: a: b: c: Find the number of real solutions of each equation using the discriminant. 5. x2 5 0 6. x2 25 0 7. x2 7 0 b2 2 4 b2 2 4 b2 ___________ ___________ ___________ ======================================================================== Use a table of values to graph y x 2 2. x 2 1 0 1 2 y Matching Match each vocabulary term with its definition. a. linear equation b. minimum c. dilation d. parabola