exam Maths Puzzle Numerical Ability

Y=2(x-1)^2+3

Find x-intercepts.

Can you please show me how to find the x-intercepts. I know the vertex is 1,3.

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exam Other Question

(-4, 0) (0, 4) (4, 0) (0, -4)

graph the following coordinates seperatly.
Hi heres one more..

For each rational function, identify any holes or horizontal or vertical asymptotes of its graph.
y = 3/(x-1) -2

thanks