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Start a blog in which to record your thoughts about precalculus mathematics. Your first entry should discuss in the things listecluded here.

• Sketches of graphs from real-world information
• Familiar kinds of functions from previous courses and from this unit
• How to dilate and translate the graph of a function
• Any difficulties or misconceptions you have but overcame
• Any topics about which you are still unsure

First, there are many types of graphs from real world information. Such as heart rates, profits, radio wave lengths, and much more. Familar functions are exponential functions, functions with domains, quadratic functions, and others. If you have to dilate(multplication.division) or translate(addition/subtraction), it all depends on if its vertical or horizontal. Vertical has the number outside the parentheses, whereas horizontal has them on the outside. One of my biggest difficulty was that on any horizontal dilation or translation, the sign in front of the number(+ -) moves the opposite way on the graph. As far as difficulties go, there are really no big ones besides maybe sketching the graphs of y=f(x).