Need help solving. For calculus.

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Four equations are shown below.equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list.why each equation you identified is linear or nonlinear.nd one nonlinear equation from the list. state a reasonlinear equation