Precalculus Examples

Step 1
Rewrite the function as an equation.
Step 2
Use the slope-intercept form to find the slope and y-intercept.
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Step 2.1
The slope-intercept form is , where is the slope and is the y-intercept.
Step 2.2
Find the values of and using the form .
Step 2.3
The slope of the line is the value of , and the y-intercept is the value of .
Slope:
y-intercept:
Slope:
y-intercept:
Step 3
Any line can be graphed using two points. Select two values, and plug them into the equation to find the corresponding values.
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Step 3.1
Create a table of the and values.
Step 4
Graph the line using the slope and the y-intercept, or the points.
Slope:
y-intercept:
Step 5
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