Using the Point-Slope Form of a Line Another way to express the equation of a straight line Point-slope refers to a method for graphing a linear equation on an x-y axis. While you could plot several points by just plugging in values of x, the point-slope form makes the whole process simpler.

Let's first quickly review slope intercept form. Equations that are written in slope intercept form are the easiest to graph and easiest to write given the proper information.

All you need to know is the slope rate and the y-intercept.

Write an equation of the line passing through the point (−4, 1) and parallel to the line defined by x + 4 y = 3. Write the answer in slope-intercept form and in standard form. Write the answer in slope-intercept form and in standard form. Remember a slope intercept form looks like this where m stands for your slope number and b is your y-intercept number. So this problem is going to take us 10 seconds or less. Write the equation of the line in slope intercept form that y-intercept of (0,-3) and slope of 4. Oct 08, · Write an equation, in slope-intercept form if possible, of the line through the pair of points.? Write an equation, in slope-intercept form if possible, of the line through the pair of Status: Resolved.

Continue reading for a couple of examples! Writing an Equation Given the Slope and Y-Intercept Write the equation for a line that has a slope of -2 and y-intercept of 5.

I substituted the value for the slope -2 for m and the value for the y-intercept 5 for b. The variables x and y should always remain variables when writing a linear equation. In the example above, you were given the slope and y-intercept.

Now let's look at a graph and write an equation based on the linear graph. Locate another point that lies on the line. Calculate the slope from the y-intercept to the second point. Write an equation in slope intercept form given the slope and y-intercept.

You can also check your equation by analyzing the graph. You have a positive slope. Is your graph rising from left to right? Yes, it is rising; therefore, your slope should be positive!

We've now seen an example of a problem where you are given the slope and y-intercept Example 1. Example 2 demonstrates how to write an equation based on a graph. Let's look at one more example where we are given a real world problem.

How do we write an equation for a real world problem in slope intercept form? What will we look for in the problem? Real World Problems When you have a real world problem, there are two things that you want to look for! The rate is your slope in the problem.

The following are examples of a rate:It's called the point-slope formula (Duh!) You are going to use this a LOT! Luckily, it's pretty easy -- let's just do one: Let's find the equation of the line .

Free slope calculator - find the slope of a line given two points, a function or the intercept step-by-step. Symbolab; Solutions Graphing Calculator finding the equation of a line Read More. High School Math Solutions – Perpendicular & Parallel Lines Calculator.

Parallel lines have the same slope, to find the parallel line at a given.

Write an equation, in the slope intercept form, of the line with slope -2 and passing through the point (-4, -5). Questions 9: Write an equation of the vertical line through the point (3, 0).

When given the slope of a line and a point on that line, you can use point-slope form write the equation of the line as a linear equation, with y = mx + b form, where m is the slope and b is the y-intercept. Given two points, write y=mx+b.

Using two points on the same line, find the slope and the y-intercept. Then write the equation of the line in slope intercerpt form.

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You may already be familiar with the "y=mx+b" form (called the slope-intercept form of the equation of a line). It is the same equation, in a different form!

The "b" value (called the y-intercept) is where the line crosses the y-axis.

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Writing Equations in Slope Intercept Form