Question

How do i graph f(x)=x^2-4

Answer 1

ur graph will cut x axis at the point of x=2 and x=-2

Answer 2

so is it because u square root the 4?

Answer 3

the value of f(x) will b positive if x>2 and x<-2

Answer 4

ya

Answer 5

ohh i get it

Answer 6

u know that
if x=2 then the equation will become\[f(x)=2^{2}-4=0\]

Answer 7

ok