The power output, PPP, of a prototype turbine is modeled by the function
P(t)=15(t2+6),t≥0 P(t) = \frac{1}{5}(t^2 + 6), \quad t \ge 0 P(t)=51(t2+6),t≥0where ttt is the time in hours since activation.
Find the range of PPP.
Find P−1(t)P^{-1}(t)P−1(t).
State the range of P−1(t)P^{-1}(t)P−1(t).
State the geometric transformation which maps the graph of y=P(t)y = P(t)y=P(t) onto the graph of y=P−1(t)y = P^{-1}(t)y=P−1(t).
Find the coordinates of the points of intersection of the graphs of y=P(t)y = P(t)y=P(t) and y=P−1(t)y = P^{-1}(t)y=P−1(t).
471 exam-style questions on Edexcel A Level Maths Functions and Graphs, covering 2.1 The Modulus Function, 2.2 Functions and Mappings, 2.3 Composite Functions, 2.4 Inverse Functions, 2.5 y=|f(x)| and y=f(|x|), 2.6 Combining Transformations, and 2.7 Solving Modulus Problems. Each one has a worked solution and a mark scheme showing where the marks go.