Slope Intercept Form - MathHelp.com - Algebra Help

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In this lesson, students learn to use slope-intercept form to graph a line. Slope-intercept form is y = mx + b form, where m represents the slope, and b represents the y-intercept. So if the equation of a line is y = 3/4 x - 2, then the line is written in slope intercept form, or y = mx + b form, with m = 3/4 and b = -2. To graph the line, start with the y-intercept, or b, of -2. From there, take the slope, or m, of 3/4, plot a second point, and graph the line.

To graph a line using slope intercept form that has an equation like y = -3x, change it to y = -3x + 0 so that it matches up with y = mx + b form. Its slope, therefore, is -3 (which can be thought of as -3/1), and its y-intercept is 0.

To graph a line using slope intercept form that has an equation like y = 4, think of it as y = 0x + 4. Its slope, therefore, is 0, and its y-intercept is 4, so its graph is a horizontal line up 4 units on the y-axis.

Slope intercept form makes it easy to graph a line quickly, without have to set up a chart and plug in values for x.

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[Tr4nB0y]

And my mom told me to get off the internet because it wouldn't help my homework...

[emomonkey95]

he is like the math god :) he has taught me more in just a few minutes than my teacher taught me in two weeks.

[Darius Hawkins]

Great Since I looked at this I know how to do it... My teacher always confuses me

[sebastian cuello]

This guy does the work extremely understandable

[jazzygirl3699]

Thanks man :) I'm in junior high and I'm taking Algebra 1 and I really was having trouble with slope-intercept. I have a test tomorrow, and I didn't know some of the materials. Thanks for the help :)

[DivaGirlz46]

ok so what do i do if it says slope=1 and it gave me two points??? please help!!!

[ryan6627]

try 2 hours everyday in high school :P

[Paramjit Singh]

Whats the point of me going to math class if i can go to youtube for help? This guy made me look dum. Thanks to him, now i know how to do the slope and intercept

[AyuTsukimiya1]

i know how you feel -_-

[chester4326]

I agree

[Marcus Maybin]

You atcually can help me insteaf of my teacher who i dont understand

[awesomegamerpros]

Wow... And we have 50 minute classes at school for math... Just have us watch this guy and get the hell out of there!