The domain are the values of X that can be used and not encounter an error. In this case, no matter what you forgot, either a minus or a plus, makes the answer "all reals"
The domain of y = -4x is all real numbers.
Since your expression is a linear equation your domain would be all real numbers. This means all of the units on the x-axis.
4x+13 = 21 4x = 21-13 4x = 8 x = 2
ln(4x)=13 4x=e^13 x=(e^13)/4
The function ( f(x) = 4x ) is a linear function. Its domain includes all real numbers, as there are no restrictions on the values that ( x ) can take. Therefore, the domain of ( f(x) ) is ( (-\infty, \infty) ).
The domain of y = -4x is all real numbers.
Since your expression is a linear equation your domain would be all real numbers. This means all of the units on the x-axis.
4x+13 = 21 4x = 21-13 4x = 8 x = 2
ln(4x)=13 4x=e^13 x=(e^13)/4
The function ( f(x) = 4x ) is a linear function. Its domain includes all real numbers, as there are no restrictions on the values that ( x ) can take. Therefore, the domain of ( f(x) ) is ( (-\infty, \infty) ).
4x-5y = 13 -5y = -4x+13 y = 4/5x-13/5 Slope = 4/5 or 0.8
Y = x squared -4x plus 3 is an equation of a function. It is neither called a domain nor a range.
Since it is a polynomial we know right away the domain is all real numbers.
x2 - 4x - 9 = 0 ∴ x2 - 4x = 9 ∴ x2 - 4x + 4 = 13 ∴ (x - 2)2 = 13 ∴ x - 2 = ±√13 ∴ x = 2 ± √13
The domain is what you DONATE to the equation. So, f(x)=4x-2. Let 18=4x-2. Add 2 to both sides. 4x=20 then divide each side by 4. x=5. That would be your answer.
4x + 3 = 16 Therefore, 4x = 13 x = 13/4 Therefore, x = 3.25
8x+5=4x+13 4x=8 x=2 Therefore, your answer is 2.