Hey Jeff,
The first concept comes into play in devices known as rectifiers. These are used to convert AC to DC and they employ diodes. Diodes are "directional current valves" and only allow the current to flow one way. As you will recall the AC that comes out of the wall is a sine wave and has...
Hello, you are making some mistakes in combining the resistors. To see why this is we need to examine some basic terminology. First we need to know what an element is, basically a battery, resistor, capacitor, etc are all elements, so basically any circuit component is an element. Now a node is...
I'd just graph those in the traditional method finding points, intercepts, end behavior, etc, since you could end up with asymptotes and stuff that the transformations would neglect. That is, if the reciprocal of your original function contains fractions. If the reciprocal of the orgininal...
You generally have to memorize the polyatomic ions, since an -ate won't have a set number and neither will an -ite, it will depend on what the poly. ion is.
Such as sulfite (SO3) and sulfate (S04) vs. Nitrite (NO2) and Nitrate (NO3)
However, you only need to memroize the -ite one, since you...
Just a few pratical examples for you
Vertical stretching: 2x^2
Vertical compression: (1/2)x^2
Horizontal stretching: (1/2x)^2
Horizontal compression: (2x)^2
X axis reflection: -x^2
Y axis reflection: (-x)^(1/2)
So in F(x)=-2(x+5)^(2)+3 for example you would graph x^2 then:
Move the graph...
Ok, there are two types of expansion/compression. First, you have expansion/compressiion that affects your y value. Generally, you recognize this when you have a number times the x variable after some kind of operation is being performed (2x^2, 2*(x)^(1/2), etc). You simply take the original Y...