Algebra Examples

Graph f(x)=3x-6
f(x)=3x-6
Step 1
Rewrite the function as an equation.
y=3x-6
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 y=mx+b, where m is the slope and b is the y-intercept.
y=mx+b
Step 2.2
Find the values of m and b using the form y=mx+b.
m=3
b=-6
Step 2.3
The slope of the line is the value of m, and the y-intercept is the value of b.
Slope: 3
y-intercept: (0,-6)
Slope: 3
y-intercept: (0,-6)
Step 3
Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y values.
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Step 3.1
Create a table of the x and y values.
xy0-61-3
xy0-61-3
Step 4
Graph the line using the slope and the y-intercept, or the points.
Slope: 3
y-intercept: (0,-6)
xy0-61-3
Step 5
 [x2  12  π  xdx ]