Find the slope and the y-intercept of the line. This example is written in function notation, but is still linear. As shown above, you can still read off the slope and intercept from this way of writing it.

The standard form of the linear equation can be derived from the graph or from given values. Linear equations are fundamental to algebra, and thus fundamental to all higher mathematics. Instructions Note that the standard form of a linear equation is: Calculate the slope of the line.

The slope can be found by selecting two points on the line, determining the vertical rise and the horizontal run between the points and dividing them.

Include negative values, since slopes can be positive or negative.

Sciencing Video Vault Determine or calculate the y-intercept of the line. The y-intercept is the y-coordinate of the point where the line passes through the y-axis of the coordinate plane.

For example, if the point of intersection with the y-axis is 0,5the y-intercept would be 5. The y-intercept can be found by physically locating it on the graph or by locating the given point on the line that has an x-coordinate of 0.

That point is the point of intersection. The y-intercept will be positive if it intersects the y-axis above the x-axis or negative if it intersects below the x-axis. The m will be your slope, and the b will be your y-intercept.

Leave the y and x variables in the equation as letter variables. Include the sign of the numbers you plug in. The linear equation is complete and correctly written when the m and b are properly incorporated into the equation.

Tip Factor negative signs into the linear equation carefully. When in doubt, check your work. She has held several editorial positions at the print publication, "The Otter Realm. This life experience inspired her to pursue travel writing.

Freeman received a degree in human communication from California State University.Use the point/slope equation to set up an equation given any point on the line and the slope. Use the point/slope equation to set up an equation given two points on the line. Write a linear equation in the slope/intercept form.

writing linear equations given two points In § we learned how to write equations when given the slope and the y – intercept. Example: Refresh your memory Write the equation of the line having slope 3 and y – intercept 4.

For almost a week now we have worked on writing the equation of the line when we know the slope and a point. Today we are going to take it to the next level by learning how to write an equation of the line when we only know two points on the line.

Write the Equation of the Line:Given two points Write the Equation of the Line:Given two points Write the slope-intercept form of the equation of the line through the given points.

1) through: (−2, −2) and (2, −5) Algebra 1 - Write the Equation of the Line Given two points. Linear Equations. A linear equation is an equation for a straight line. These are all linear equations: There are many ways of writing linear equations, but they usually have constants Finding the Equation of a Line from 2 Points.

To write the equation of a line given two points on the line, start by finding the slope. Remember that slope is the change in the y-values over the change in the x-values, or (y2-y1)/(x2-x1). Use the given points.

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Linear Equation of a Line Worksheets