Lines
da Spencer Stewart
1. Graphs
1.1. The values of x and y in each function can be represented as a set of ordered pairs on a graph.
1.2. A table a values can easily show the values of both x and y as the ordered pair
1.3. Graphing Example
2. Slope Intercept Equation
2.1. y=mx+b is called the "slope intercept form" where m is the slope of the line and b is the y intercept. This equation is most commonly to graph when we know the slope and intercept.
2.2. Find Equation Example
3. Point Slope Equation
3.1. Point slope form is defined as y2-y1=m(x2-x1) and we use this equation when we know the slope and one point that is on the line.
3.2. Point Slope Example
4. Terms in Equations
4.1. x is the independent variable and y is the dependent variable. This means that in a function, each x value will have a specific y value.
4.2. Slope (m) is the steepness of the line. It has the equation of (y2-y1)/(x2-x1), or commonly called "rise over run." This means that we count how many spaces a line moves up or down, divided by how many spaces the line moves left or right.
4.2.1. In-depth Explanation