What is the domain of (gf)(x)?f(x)=2xg(x)=−5x+3Choices:[A]All real numbers[B]All real numbers except 53[C]All real numbers except −53[D]All real numbers except 35
Q. What is the domain of (gf)(x)?f(x)=2xg(x)=−5x+3Choices:[A]All real numbers[B]All real numbers except 53[C]All real numbers except −53[D]All real numbers except 35
Identify Formula: Identify the formula for ((f)/(g))(x).((f)/(g))(x) is the quotient of f(x) and g(x), which means we need to divide f(x) by g(x).((f)/(g))(x)=f(x)/g(x)
Given Functions: We have the functions:f(x)=2xg(x)=−5x+3To find the domain of (gf)(x), we need to determine the values of x for which g(x) is not equal to 0, since division by zero is undefined.
Find Domain: Solve for x when g(x)=0 to find the excluded value from the domain.g(x)=0–5x+3=0–5x=–3x=–3/(–5)x=53
Solve for Excluded Value: We found that g(x)=0 when x=53. This means that x=53 is the value that cannot be included in the domain of (gf)(x) because it would make the denominator zero.