anonymous
  • anonymous
Please help.... Will give medal for best anwser....
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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mathteacher1729
  • mathteacher1729
What is the slope of the line?
anonymous
  • anonymous
idk?

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anonymous
  • anonymous
4, 1 & 1/2
mathteacher1729
  • mathteacher1729
Not quite.. I'm not sure how you are getting those numbers.
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anonymous
  • anonymous
idk how to do this math :/
anonymous
  • anonymous
|dw:1350139808849:dw| y=mx+b is the slope intercept form put values in it
mathteacher1729
  • mathteacher1729
Slope-intercept is basically a very short way of describing ANY straight line. It can be super useful in figuring out, say, how much money you make if you get paid an hourly wage.
mathteacher1729
  • mathteacher1729
The slope is "rise over run" or the ratio (fraction) of how far up or down the line goes for every bit it moves left or right.
mathteacher1729
  • mathteacher1729
In this case, for every "rise" of negative 3 (going down three) the line goes one to the right.
anonymous
  • anonymous
so -3, 1?
mathteacher1729
  • mathteacher1729
So slope = -3/1. Slope = -3 (because any number divided by 1 is itself).
anonymous
  • anonymous
well -3 / 1
mathteacher1729
  • mathteacher1729
Yup, that's the slope.
anonymous
  • anonymous
thanks.. (:
mathteacher1729
  • mathteacher1729
Now the INTERCEPT just means "what value of y does this line cross the y-axis" the intercept is literally JUST A NUMBER. :)
anonymous
  • anonymous
4
mathteacher1729
  • mathteacher1729
So look at your picture. What value of y does the line cross (or touch, or intercept, they all mean the same thing) the y-axis?
mathteacher1729
  • mathteacher1729
Yup! :D
anonymous
  • anonymous
yay!
mathteacher1729
  • mathteacher1729
The slope intercept form of a line is y = mx + b where m is the slope (-3) and b is the intercept (4). Literally re-write that but instead of m write -3 and instead of b write +4 and you're done. :)
anonymous
  • anonymous
so, 4=-3x +4?
anonymous
  • anonymous
or y=-3x+4?
mathteacher1729
  • mathteacher1729
The second one.===> y=-3x+4 The crazy thing is... that describes the ENTIRE line. All the points on the line obey that equation. Question -- what is the value of Y on the line when X = 2? (look at your picture)
anonymous
  • anonymous
uh...

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