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abb0tBest ResponseYou've already chosen the best response.2
Start with the graph of x. you know that the the graph is x is a line. You know that because: y = mx + b. Now, you have 3x + 13. and you know that b = ycoordinate. So that means you're shifting 3x UP by 13 units on the yaxis. Same with the 2nd function, it's a linear function. Except now you're not adding , your subtracting, meaning negative, shifting your line negatively on the yaxis.
 one year ago

lexiameeBest ResponseYou've already chosen the best response.0
sorry still stlighty confused
 one year ago

abb0tBest ResponseYou've already chosen the best response.2
y = mx + b is the function for a LINE. dw:1356778518146:dw where m = slope b = y coordinate for instance, if I have 3x + 2 then your graph is: dw:1356778594056:dw it means 3 (x) + 2 2 is y so 2 shifted UP two. if it was 2, then I would of shifted the line DOWN two.
 one year ago
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