Question

find the domain in f(x)=x2+4

Answer 1

All real numbers

Answer 2

show me algebracalliy

Answer 3

f(10)=10^2+4=104 .......f(0)=0^2+4=4 ...............f(-5)=(-5)^2+4=29.........you can put in any real number, f(-100000000).f(7),f(9999999) whatever you like

Answer 4

therefore the domain is any number your heart desires

Answer 5

Also, it is all real numbers because there is nothing that causes this to be 0

Answer 6

since x^2 function is defined for all real x ..you can put anything in place of x and calculate x^2. so there is no restriction...it is obvious so no algebraic explanation has written

-infinty < x < +infinity