Question

State the domain of the function f(x)=5x^2-2x+1

Answer 1

it's the whole set of Real Numbers

Answer 2

got it ?

Answer 3

yes i see on the calculator, but is there a way to know without graphing or no?

Answer 4

Normally you just look for what x cannot be. In this case, there are no values of x that would break the equation. A common thing to look for is a denominator; if x is in the denominator, you would want to find all the values of x that could make the denominator zero, which would make the equation undefined for those values of x (thus you would want to restrict the domain).

Answer 5

yeah.. i said it without using a cal or graphing it.... here is the basic... domain means the set of values that x can take in the function....
here whatever x takes there will be a value for f(x) ...
so the domain is the set of real numbers

Answer 6

ok thank you so much!!

Answer 7

u r welcome !