intercepts of f(t)=t^2-1 — step-by-step solution

On the horizontal axis, y = 0: solve

t^{2} - 1 = 0

⇥Let's solve in

ℝ

t^{2} - 1 = 0

⇥The two numbers whose square is

1

are

-1

and

1

⇥Solutions found:

t = {-1, 1}

On the vertical axis, t = 0: calculate f(0)

⇥

0^{2} - 1

⇥ⓘ Adding 0 changes nothing:

0 - 1

-1

⇥

-1

▶Axis intercepts:

{(-1, 0), (1, 0), (0, -1)}