Question 427442
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Hi
x-intercepts (Note: when y = 0) 
y=x^2-2x-3
 x^2-2x-3=0
factoring
(x-3)(x+1)=0
(x-3)=0  x = 3
(x+1)=0  x = -1

x-intercepts: (3,0) and (-1,0)