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Slope and intercept meaning from a table

Given a linear relationship in a table, Sal graphs the relationship to explore what the slope and intercepts mean in the given context.

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• I pretty much don't understand any of this I'm really confused on all of this please someone help ASAP. I'm in some serous trouble and it involves repeating a grade!
• Please elaborate on what you don't understand, I will provide my best attempt in helping you :)
• how will any of this teach me how to dropship and get rich
• It probably won’t help you in dropshiping. But what if you failed in that trade? You might use it somewhere. Learning stuff is never bad.
• Hello everyone!

Quick question at , how did Mr. Sal concluded that -7 kg of dog food per 14 days is equivalent to -1/2 of a kg of dog food per one day? Isn't it supposed to be -1 kg of dog food per 2 days?
• Half a kilogram per day is the same as 1 kilogram every 2 days.
• I thought it was 3.5 per week not 1/2
• It is -1/2 kg/day which is the same as 3.5 kg/wk. Sal even talks about every 14 days it going down 7, so a third equivalent fraction is 7 kg/2 wks.
• what is the slope intersept form
• slope {y} intercept form is y=mx+b
point (x1,y1) slope form is y-y1=m(x-x1)
standard form is normally Ax+By=C
• In the problem, Felipe decides to measure how much food is left after each week, but he decides to do this only after 2 weeks after initially opening it. Does this two weeks have any significance in the problem?
• It is very significant because Sal is trying to find how much food was originally in the bag (y intercept), so we have to go backwards 2 weeks to find that amount.
• what does he mean when he says that t goes down by an entire kilogram at around -
• I think that was a "pause mistake" that Sal says as he is trying to explain it because he goes on to say that every 2 weeks, it goes down 7 kilograms (not 1 kilogram). If the slope is -7/3.5 days/kg, reducing gives -2 days/kg.
• Can someone please explain how Sal concluded that the y-intercept was the point (0,21)? I understood the reason for the x-value being zero but i’m confused about the y-value. Thank you!