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anonymous
 one year ago
if f(2)=5 and f(1)=3, find a and b in the function f(x)=ax+b
anonymous
 one year ago
if f(2)=5 and f(1)=3, find a and b in the function f(x)=ax+b

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dan815
 one year ago
Best ResponseYou've already chosen the best response.2can you find the slope given these 2 points?

dan815
 one year ago
Best ResponseYou've already chosen the best response.2slope is the change in y per every change in x

dan815
 one year ago
Best ResponseYou've already chosen the best response.2for the points (2,5) and (1,3) look at how the y changes and how the x changed y from 5 to 3 x from 2 to 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the slope would be 2 /3

dan815
 one year ago
Best ResponseYou've already chosen the best response.2y went down 8 x went down 3 8/3 = 8/3

dan815
 one year ago
Best ResponseYou've already chosen the best response.2remember from 5 to 3 not 5 to 3

dan815
 one year ago
Best ResponseYou've already chosen the best response.2plug in your slope and one of those points and see what b has to be

dan815
 one year ago
Best ResponseYou've already chosen the best response.2f(x)=ax+b f(x)=8/3x+b pick one of the points (2,5) 5=8/3*(2)+b b=?

dan815
 one year ago
Best ResponseYou've already chosen the best response.2f(x) is another way to say y

dan815
 one year ago
Best ResponseYou've already chosen the best response.2y=8/3x+b we are given point (2,5)< x,y value in that order so we can plug that in for x,y 5=8/3(2)+b so we can see what b has to be so that this equation is satisfied

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you so much, i appreciate it
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