Now what is our b? And let me draw a line. If we denote any other point on the line as P x, y see Figure 7.

Graph a line with a slope of So the y-intercept, this point right over here, this is where the line intersects with the y-axis. If I move back 1 in the x-direction, I move down 2 in the y-direction.

And our slope is equal to rise over run. We could say b is equal to 8. We must move down 1. So when x is equal to 0, y is equal to one, two, three, four, five.

What happens when x is equal to 1? Anyway, hopefully you found this useful. Since b is zero, the y-intercept is zero and the line passes through the origin 0,0. So this is the point 0 comma b. Example 1 We know that the pressure P in a liquid varies directly as the depth d below the surface of the liquid.

Since the line passes through the origin, we must choose another point not on the line as our test point.

Where m is the slope of the line.

Repeat the above steps from your second point to plot a third point if you wish. Play with different values of b and observe the result.

We are still going to use the definition of slope, which is: So this is the point 0 comma b. Let me draw a quick line here just so that we can visualize that a little bit. When x in the symbol f x is replaced by a particular value, the symbol represents the value of the expression for that value of x.

In the next example, we will graph a line with a negative slope. Count the run to the right. You could view that as negative 1x plus 0.

When reading the graph from left to right, the line rises if the slope is positive. For right now, we are only focusing on slope. You must have at least two points to draw a line. And this b over here, this is the y-intercept of the line.

The denominator is 1, so we went right 1 4. If the slope is positive, count up and if the slope is negative, count down. As I change x, y will not change. And this b over here, this is the y-intercept of the line.

They tell us we go through the-- Let me just, in a new color.Learn about the slope-intercept form of two-variable linear equations, and how to interpret it to find the slope and y-intercept of their line. Write an equation of a line whose slope is 1 0 10 1 0 10 and y y y y-intercept is (0.

Graphing Slope. Accurately graphing slope is the key to graphing linear equations. In the previous lesson, Calculating Slope, you learned how to calculate the slope of a line.

In this lesson, you are going to graph a line, given the slope.

A You-Tube Style Demonstration of how to write the equation of a line given slope and 1 point and a free worksheet for extra practice. 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 slope of a line in the plane containing the x and y axes is generally represented by the letter m, and is defined as the change in the y coordinate divided by the corresponding change in the x coordinate, between two distinct points on the line.

This is described by the following equation: =. (The Greek letter delta, Δ, is commonly used in. In mathematics, a recurrence relation is an equation that recursively defines a sequence or multidimensional array of values, once one or more initial terms are given: each further term of the sequence or array is defined as a function of the preceding terms.

The term difference equation sometimes (and for the purposes of this article) refers to a specific type of recurrence relation.

DownloadWrite an equation with a slope of 0

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