Now that you have the values, use the slope formula to calculate the slope:.Let’s say that the coordinates are x₂ = 2 and y₂ = 3. Next, jot down the second point’s coordinates.Let’s say that the coordinates are x₁ = 1 and y₁ = 1. Start by jotting down the first point’s coordinates.Of course, you can also perform the calculation manually without the use of a slope calculator. Just input the required values about the points which the line goes through. With this point slope calculator, you can find any given line’s equation in a slope intercept form. Do this to solve for the y-intercept:ī = y₁ – x₁(y₂ – y₁)/(x₂ – x₁) How to find the slope of a line? The next step is to subtract your first equation from a second equation:įor the final step, find the slope by dividing both sides of the equation by (x₂ – x₁):Īfter solving for the slope, you can substitute the value into the first equation or the second one. The first step is to substitute the coordinates of both points into the equation for the slope intercept: In this example, you’re solving for the y-intercept and the slope. For the first point, it has coordinates (x₁, y₁) while the second point has coordinates (x₂, y₂). So, how do you find slope without using a slope calculator? For this, let’s assume that you already know the points that your given line goes through. To calculate for it, you should substitute x to zero in your linear equation. The y-intercept refers to the value of y at which the given line crosses the y-axis. If there is a negative change, the y values decrease along with the x values. It there is a positive change, the y values increase along with the x values. It tells you how much change you can expect from y when a fixed change occurs in x. The word “slope” refers to the gradient or the inclination of any given line. Later on, you can utilize these values when you need to perform linear interpolation. This is what’s known as the “slope intercept form.” This is a very important formula because it provides you with two significant pieces of information namely the line’s y-intercept and the slope m. As we stated in our previous example, you can write the formula of any given line as: For instance, you may find a y term or an x term but you will never find either a y2 or an x2 term.Įvery linear formula describes straight lines and you can express them using the equation for the slope intercept form. Going back to straight lines, you can recognize straight line or linear equations easily as these have no terms with exponents. But if you want to learn more about a parabola and a parabolic function, you can use online calculators and explore the quadratic formula to understand it better. This slope of a line calculator only performs calculations for straight lines.
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