Answer:
1.for x=2 and x=4 , y=0 so the zeroes are 2 and 4
the symettry of the parabola is x=3
2. the answer is x= -b/2a=-2/2=-1
x=-1 is the symettry of the parabola
3. V(-b/2a, -(b^2-4ac)/4a)
-b/2a=-10/4=-5/2=-2.5
- (b^2-4ac)=- (100-64)=-36
4a=4*2=8 so the answer is V(-2.5 , - 36/8)= V(-2.5, -4.5)
4. y=3x^2-18x+17
V(-b/2a, -(b^2-4ac)/4a)
V(18/6, (-18^2+4*3*17)/12)
V(3, (-324+204)/12
V(3, -10)
the simmetry of parabola is x=3
Step-by-step explanation:
