# Graph y=3x

The slope-intercept form is , where is the slope and is the y-intercept.

Find the values of and using the form .

The slope of the line is the value of , and the y-intercept is the value of .

Slope:

y-intercept:

Slope:

y-intercept:

Find the x-intercept.

To find the x-intercept(s), substitute in for and solve for .

Solve the equation.

Rewrite the equation as .

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

x-intercept(s) in point form.

x-intercept(s):

x-intercept(s):

Find the y-intercept.

To find the y-intercept(s), substitute in for and solve for .

Solve the equation.

Remove parentheses.

Multiply by .

y-intercept(s) in point form.

y-intercept(s):

y-intercept(s):

Choose to substitute in for to find the ordered pair.

Replace the variable with in the expression.

Simplify the result.

Multiply by .

The final answer is .

The value at is .

Create a table of the and values.

Graph the line using the slope and the y-intercept, or the points.

Slope:

y-intercept:

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