Name the x-intercepts and the vertex of the graph of the function?

Question

y= (x+3)(x+1)



y=(x-2)(x-4)



y=(x-1)(x+5)

Answer 1

y= (x+3)(x+1)
x-int = -3, -1


y=(x-2)(x-4)
x-int = 2, 4


y=(x-1)(x+5)
x-int = 1, -5

Answer 2

As you have the x intercepts
1)V(-2,-1)
2)V(3,-1)
3)V (-2,-9)
The x coordinate is half the sum of the intercepts and you get the y by substituting in the function