Did I do this right?
Find the domain and range
f(x)=-4x-2
y=-4x-2
x=-4y-2
x+2/-4=-4y/-4
f(x)=x+2/-4
answer:
domain (all real numbers)
range (all real numbers)
Domain; 17
Range; 20
Beth, you are correct
Since your function is a straight line with a slope of -4
the domain and range are both the set of real numbers.
Thanks.
To find the domain and range of a function, you need to analyze the function equation. In this case, the given function is:
f(x) = -4x - 2
To find the domain, you need to determine the values of x for which the function is defined. In this case, since the function is a linear equation, it is defined for all real numbers. Therefore, the domain is all real numbers.
To find the range, you need to determine the possible values of y that correspond to the given domain of x. In this case, the function is a linear equation with a slope of -4, which means that as x increases or decreases, y will either decrease or increase accordingly. Since there are no restrictions on the values of y, the range is also all real numbers.
In summary:
- The domain of the function f(x) = -4x - 2 is all real numbers.
- The range of the function f(x) = -4x - 2 is also all real numbers.