# Write an equation with a slope of 0

As shown above, you can still read off the slope and intercept from this way of writing it. Its graph is therefore a horizontal straight line through the origin.

In general let us say we know a line passes through a point P1 x1, y1 and has slope m. As I change x, y will not change. It's always easier to think in fractions. We are still going to use the definition of slope, which is: Let me write that.

However, the two solutions of an equation in two variables that are generally easiest to find are those in which either the first or second component is 0.

The way you verify that is you substitute x is equal to 0. Let's do equation B. Note that all the x values on this graph are 5. Repeat the above steps from your second point to plot a third point if you wish.

So if you simplify this, b minus b is 0. Substituting into Equation 1 yields Note that we get the same result if we subsitute -4 and 2 for x2 and y2 and 3 and 5 for x1 and y1 Lines with various slopes are shown in Figure 7. So the y-intercept, this point right over here, this is where the line intersects with the y-axis.

In this form, the slope is m, which is the number in front of x. So b is equal to negative 2. Now consider the lines shown in Figure 7. Can we write -3 as a fraction.

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Looking at the graph, you can see that this graph never crosses the y-axis, therefore there is no y-intercept either. Now given that, what I want to do in this exercise is look at these graphs and then use the already drawn graphs to figure out the equation.

Our change in y is positive 3. They tell us what we go through the point 0 comma 8. That is, every ordered pair that is a solution of the equation has a graph that lies in a line, and every point in the line is associated with an ordered pair that is a solution of the equation. The way you verify that is you substitute x is equal to 0.

Try it yourself Press "reset", then "hide details" Adjust the sliders until you see a line that appeals to you Estimate the slope and y-intercept of the line and write down the equation for the line Click on "show details" and see how close you got Hints The point where the line crosses the vertical y-axis is the y-intercept - b For each increase of one on the horizontal x-axis, how much does the line go up or down.

Look at the denominator of the slope. Notice, x is 0. Thus, every point on or below the line is in the graph. The line gets steeper as the absolute value of the slope get larger. In the previous lesson, Calculating Slopeyou learned how to calculate the slope of a line.

Improve your math knowledge with free questions in "Slope-intercept form: write an equation" and thousands of other math skills. From the table we see that 1 mole of water has a mass of grams, which isn't very much (about the mass of water in a couple of small ice-cubes you'd make in your family freezer).

Any Equation. Make URL.

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Algebra. Let's write the equation of the line that passes through the points (0, 3) (0,3) (0, 3) and (2, 7) (2,7) (2, 7) in slope-intercept form. Recall that in the general slope-intercept equation y = m x + b y=\maroonC{m}x+\greenE{b} y = m x + b, the slope is given by m \maroonC{m} m and the y y y -intercept is given by b \greenE{b} b.

A slope of and a y intercept of what is the equation of the line in slope intercept form. asked Feb 24, in ALGEBRA 2 by chrisgirl Apprentice. Write an equation in slope-intercept form for the line with slope 1/2 that contains the point (4,6).

asked May 14, in ALGEBRA 1 by marleney Novice. How to Solve a Cubic Equation. The first time you encounter a cubic equation (which take the form ax3 + bx2 + cx + d = 0), it may seem more or less unsolvable.

However, the method for solving cubics has actually existed for centuries!.

Write an equation with a slope of 0
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Slope-intercept equation from slope & point (video) | Khan Academy