#1
#2
Zeros are the x intercepts
Here they are
#3
Vertex form of parabola:-y=a(x-h)²+k
#4
Attached
i)
Factor using completing square method
ii)
Find zeros of a function, f(x) = 0
iii)
In order to find vertex use the formulae : x = -b/2a
Then find y:
coordinates: (8, 0)
iv) Sketched Below:
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