+0  
 
+5
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avatar+216 

Suppose f is a linear function such that f(5) = 2. If the slope of f is 3.1, then what is f(10)? (Round your answer to one decimal place.)

f(10) = ____

idenny  Feb 26, 2017

Best Answer 

 #1
avatar+75333 
+5

We have the point (5,2) on the graph

 

If the slope is  3.1,  f(10)  =  (10, 17.5)  

 

If the slope is meant to be 3:1, then f(10)  =  (10, 17)

 

 

cool cool cool 

CPhill  Feb 26, 2017
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3+0 Answers

 #1
avatar+75333 
+5
Best Answer

We have the point (5,2) on the graph

 

If the slope is  3.1,  f(10)  =  (10, 17.5)  

 

If the slope is meant to be 3:1, then f(10)  =  (10, 17)

 

 

cool cool cool 

CPhill  Feb 26, 2017
 #2
avatar+216 
0

Can you please tell me how you got 17.5 in details? Step by step?

idenny  Feb 26, 2017
 #3
avatar+75333 
+5

If the slope is  3.1,  this equals  3.1 / 1

 

So......everytime x changes by 1, y changes by 3.1

 

And x changes by 5  from  f(5) to f(10).....so....y changes by  5(3.1)  = 15.5

 

And adding that to its original value of 2 ....[ remember....(5.2)  is the original point ] we have

 

15.5 + 2  = 17.5

 

 

 

cool cool cool

CPhill  Feb 26, 2017

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