Mathematics

find the zeros of y=x²-1 from a graph.


Answers

shaun1

4 years ago Comment

Best answer

[latex]y=x^2-1[/latex]

[latex]0=x^2-1[/latex]

[latex]0=(x+1)(x-1)[/latex]

[latex]x+1=0[/latex]

[latex]x=-1[/latex]

[latex]x-1=0[/latex]

[latex]x=1[/latex]

[latex]zeros:-1,1[/latex]

BettieZumbrunnen

4 years ago Comment

y = x² - 1

I can find the zeros from a graph, but that won't help you any, because
I'm not about to draw the graph and then post it here.

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

y = 0 when x = +1 or x = -1.