27 A level Mathematics Composite Functions Part 3

In this A Level Mathematics video, we tackle composite functions with an exam-style question. We begin by evaluating fg of 1 for the functions f(x) = 3x + 4 and g(x) = 2 over x + 3, demonstrating the step-by-step substitution process. Following this, we solve the equation gf of x equal to 6, showing how to form the composite function and then solve the resulting algebraic equation for x. Subscribe to @AxiomTutoringCourses for more A Level Mathematics tutorials.