1. which of the following is the equation of the axis of symmetry for the function? y = x2 -4x + 8
a. x = -4
b. x = 2
c. y = -2
d. y = 2x
2. this function has how many solutions? 4x2 = 0
a. 2
b. 1
c. 0
3. which is the set of roots for the equation? x2 + 3x - 18 = 0
a. {18,-1}
b. {-2,9}
c. {-6,3}
d. {9}