8. When is the graph of the function undefined in a certain value of x? a. When the value of the numerator is zero. b. When the value of the denominator is zero. c. When the value of the function is zero. d. None of the above. 9. Which equations satisfies the table of values below? X Y -2 -1 -1 0 Und 3 1 2 2 1.67 1 a. y = *** +3 **3 b.y = +1 x-3 c. y = * メール d. y = 10. Which table of values satisfies the graph presented on the right side? a. Х Y -2 0 -1 0.5 O 1 1 1.5 2 2 b. - 2 X Y -1 -1 Olo 1 1 2 2 2 -2 c. -2. X Y -1 -0.5 0 - 1 1 -1.5 2 -2 DON O d. Х Y -2 2 -1 1 0 0 1 -1 2 -2​