8. Which does not pertain to the symbol-? a. at least b. difference c. diminished d. minus 9. Given the equation 5x + 2y = 0 if x=2 what is y? a. -5 b. -2 c. 2 d. 5 10. Find y when x=4 given the equation y = 2x2 a. -32 b. -16 C. 16 d. 32 11. Given the equation 4a-6b+8a =0, if a=5 what is b? a. -10 b.-5 d. 10 12. Which of the following is a polynomial? a. a + b -4 b. x2 + x - 12 c. xy2 - y2 +2 d. all of the above nohnomial