Videos for exponential and logarithm functions:
Graphs of exponential functions-part 1: https://www.youtube.com/watch?v=6P1V0o-GJc0
Graphs of exponential functions-part 2: https://www.youtube.com/watch?v=D7Qe69NQ0NY
Graphs of logarithms-part 1: https://www.youtube.com/watch?v=vLCnU5juE1Q
Graphs of logarithms-part 2: https://www.youtube.com/watch?v=lVEl-9u0AvY
Properties of logarithms-part 1: https://www.youtube.com/watch?v=PE--brhqovc
Properties of logarithms-part 2: https://www.youtube.com/watch?v=PYyXdnrnPyM
Solving exponential and logarithmic equations-part 1: https://www.youtube.com/watch?v=6z2kbksgu7M
Solving exponential and logarithmic equations-part 2: https://www.youtube.com/watch?v=Lct8WVYI39U
Solving exponential and logarithmic equations-part 3: https://www.youtube.com/watch?v=dl5uIebksOc
Exponential and logarithmic models-part 1: https://www.youtube.com/watch?v=7p5rOticCNU
Exponential and logarithmic models-part 2: https://www.youtube.com/watch?v=eyn5p2XpKsY
Exponential and logarithmic models-part 3: https://www.youtube.com/watch?v=adeY1-alNLU
Rational Inequalities-part 1: https://www.youtube.com/watch?v=CvaNCGM9kYg
Rational Inequalities-part 2: https://www.youtube.com/watch?v=pL_nC3iykac