5-2 Using Intercepts
Objectives: Find x- and y-intercepts and interpret their meanings in real-world situations & use x- and y-intercepts to graph lines.
- The y-intercept is the y-coordinate of the point where the graph intersects the y-axis. The x value will ALWAYS be 0.
- The x-intercept is the x-coordinate of the point where the graph intersects the x-axis. The y value will ALWAYS be 0.
To find an intercept from an equation, first put the equation into STANDARD FORM. From there, plug zero into the opposite variable in which intercept you are solving. (To find the y-intercept, the x-value will be zero and vice versa.)