Y 5x

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Now in question number eight were asked, which of the following is the graph 2 of this equation, right? And the equation that they give us is Y 3 minus five X is equal to negative six. If you're ever trying to take an equation and turn 7 it into a graph you want to use Y intercept form, 8 which is Y equals MX plus B. Now, 14 if I'm trying to take that minus five X and move it from left 15 to, right, that means I need to add five X to both sides, 16 because that will allow the Xs to cancel on my left, 17 leaving me with just Y and then I'll have a plus five X, 18 which I can just write, um, is five X minus six. So our slope is 21 a positive number. It's a positive five.

Y 5x

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If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Search for courses, skills, and videos. Intro to slope-intercept form. About About this video Transcript.

Y 5x

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Search for courses, skills, and videos. Solving systems of equations with substitution. The substitution method is a technique for solving a system of equations. This article reviews the technique with multiple examples and some practice problems for you to try on your own. What is the substitution method? The substitution method is a technique for solving systems of linear equations. Let's walk through a couple of examples. Example 1.

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Now, we have one equation with one unknown. So negative 5x plus 8 is equal to negative 2. We know that 16 does not equal negative 2. I hope that helps make it click for you. Posted 2 months ago. Show preview Show formatting options Post answer. We can distribute this 2 onto both of these terms. Now, 14 if I'm trying to take that minus five X and move it from left 15 to, right, that means I need to add five X to both sides, 16 because that will allow the Xs to cancel on my left, 17 leaving me with just Y and then I'll have a plus five X, 18 which I can just write, um, is five X minus six. Because that's what the first constraint tells us. So we have 2 times negative 5x is negative 10x. It's right over there.

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So when we go to the second constraint here, every time we see a y, we say, well, the first constraint tells us that y must be equal to negative 5x plus 8. Video transcript Use substitution to solve for x and y. Put both equations in slope y-intercept form If both have the same slope and different y-intercept then these lines are parallel and the system has no solution. Downvote Button navigates to signup page. Theresa Johnson. Me getting more info from the 9 year old comment than from the video:. How would solves equations with squares? Posted 4 months ago. Log in. We have 10x plus. Continue Reading So it looks like this. Sort by: Top Voted. It's parallel.