# Graph three x plus four y equals twelve

Graph 3x+4y=12
Calculate .
Subtract from both sides of the equation.
First, divide each term by and Clarify.
Divide each term in by .
The common factor should be canceled of .
Cancel the common factor.
Divide by .
Clarify each term.
Divide by .
Put the negative in front of the fraction.
Should be rewritten in slope-intercept form.
The slope-intercept form is , where is the slope and is the y-intercept.
Shift and .
Rewrite in slope-intercept form.
Use the slope-intercept form to find the slope and y-intercept.
Find the values of and using the form .
The value of is the gradient of the line, and the y-intercept is the value of .
Slope:
y-intercept:
Slope:
y-intercept:
Any line can be graphed using two points. Select two values, and plug them into the equation to find the corresponding values.
Choose to substitute in for to find the ordered pair.
Replace the variable with in the expression.
Clarify the result.
Simplify each term.
The common factor should be canceled and .
Factor out of .
The common factors should be canceled.
Factor out of .
Cancel the common factor.
Reformulate the expression.
Divide by .
First, multiply by .
Multiply by .
Sum and .
The result is .
The value at is .
Choose to substitute in for to find the ordered pair.
Replace the variable with in the expression.
Simplify the result.
Multiply by .
To write as a fraction with a common denominator, multiply by .