6. If = 10, then the point (4, 10) is on the graph = − f(4) x of f. 3 − 3 = 0 x = 3 x + 3 = 0 or x ( ) = − −3 zeros of 9 are and 3. The G x x2 7. repeated; multiplicity 2 of the graph of are −3 and 3. x-intercepts G discriminant; negative 8. ( ) = 0 F x 9. False. If the discriminant of a quadratic equation 15. is 0, then the equation has one repeated real + − 6 = x2 x solution. If the discriminant is negative, then the 0 ( + 3)( − x x 2) = 0 equation has no real solutions. = − 3 x + 3 = 0 x 10. True. or − 2 = 0 x = 2 x ( ) The zeros of = + − 6 are −3 and 2. F x x2 x −3 The of the graph of are and 2. x-intercepts F
6. If f(4) = 10, then the point (4, 10) is on the graph of f. x + 3 = 0 or x = − 3 x − 3 = 0 x = 3 7. repeated; multiplicity 2 8. discriminant; negative 9. False. If the discriminant of a quadratic equation is 0, then the equation has one repeated real solution. If the discriminant is negative, then the 15. zeros of G ( x ) = x2 − 9 are −3 and 3. The x-intercepts of the graph of G are −3 and 3. F ( x ) = 0 x2 + x − 6 = 0 ( x + 3)( x − 2) = 0 equation has no real solutions. 10. True. x + 3 = 0 or x = − 3 x − 2 = 0 x = 2 The zeros of F ( x ) = x2 + x − 6 are −3 and 2. The x-intercepts of the graph of F are −3 and 2.
Downloadable-Solution-Manual-for-Precalculus-Concepts-Through-1.docx