Question 97376
f(x) = x^2 -2 

for the y-intercept 

replace x by 0

y-intercept = -2

for x-intercept 

replace y by 0

0= x^2 -2
x = +-{{{ sqrt(2))}}}

{{{ graph( 300, 200, -6, 5, -5, 5, x^2 -2)}}}