Posted by **zachary** on Friday, November 2, 2012 at 11:36pm.

given function f(X)=X^3+3x

findthe rate of change between the two stated values for x:1 to 2

find the equation of a secant line (1,f(1)and(2,f(2))

- college algebra -
**Steve**, Saturday, November 3, 2012 at 2:57am
f(1) = 4

f(2) = 14

rate of change = slope = 10

line containing (1,4) with slope 10 is

(y-4) = 10(x-1)

- Note to zachary - college algebra -
**Reiny**, Saturday, November 3, 2012 at 8:40am
always check back to see if your question has been answered before posting it again.

http://www.jiskha.com/display.cgi?id=1351890441

This will avoid unnecessary duplication by tutors of the same work.

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