Tuesday

April 21, 2015

April 21, 2015

Posted by **Brown** on Monday, June 6, 2011 at 9:48am.

a. Write out an equation for f(x). Assume the function is linear

- algebra -
**Dr Russ**, Monday, June 6, 2011 at 9:59amIf it is linear then the general equation for a straight line

y=mx+c

must apply

Take two sets of coordinates and plug these in

-5=-2m+c

-2=-1m+c

solve for m and c

m=3

c=1

check using another set of points

7=2x3+1 which is fine

so equation is

y=3x+1

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