SOLUTION: Identifying The Domain of a Quadratic Function 1) y=-x^2+7x+1 2) y=-3/5x^2+21x-3 3) f(x)=4x^2+5x-12 4) g(x)=x^2+12x-8

Algebra ->  Functions -> SOLUTION: Identifying The Domain of a Quadratic Function 1) y=-x^2+7x+1 2) y=-3/5x^2+21x-3 3) f(x)=4x^2+5x-12 4) g(x)=x^2+12x-8      Log On


   

Question 925476: Identifying The Domain of a Quadratic Function
1) y=-x^2+7x+1
2) y=-3/5x^2+21x-3
3) f(x)=4x^2+5x-12
4) g(x)=x^2+12x-8
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The domain of ANY quadratic function is the set of all real numbers. This is because there are no restrictions due to division by zero, square rooting a negative number, etc. Any number works for x.