Keyword | CPC | PCC | Volume | Score | Length of keyword |
---|---|---|---|---|---|

graphing | 1.67 | 0.2 | 7651 | 31 | 8 |

A TI-83 will set a student back around $100, while the TI-84 still costs more than $100. Most obsolete gadgets lower in price (consider this $10 flip-phone ), but the humble graphing calculator continues to boast a hefty price tag.

Graphing Linear Equations Use the y=mx+b formula. To graph a linear equation, all you have to do it substitute in the variables in this formula. Draw your graph. Graphing a linear equation is the most simple, as you don’t have to calculate any numbers prior to graphing. Find the y-intercept (b) on your graph.

To solve a system of equations by graphing, graph each equation and identify the point where the two lines intersect. That point is the solution to the system of equations -- it is where the x and y values of the two equations are equal. Check the solution by plugging the values into each equations.

Coordinates of Points. A point is the basic relationship displayed on a graph. Each point is defined by a pair of numbers containing two coordinates. A coordinate is one of a set of numbers used to identify the location of a point on a graph. Each point is identified by both an x and a y coordinate.