SOLUTION: USE FUNCTION NOTATION TO WRITE AN EQUATION FOR THE LINE CONTAINING THE POINTS (-2,7) AND (3,-5).

Algebra ->  Functions -> SOLUTION: USE FUNCTION NOTATION TO WRITE AN EQUATION FOR THE LINE CONTAINING THE POINTS (-2,7) AND (3,-5).      Log On


   

Question 127413: USE FUNCTION NOTATION TO WRITE AN EQUATION FOR THE LINE CONTAINING THE POINTS (-2,7) AND (3,-5).
Answer by BrittanyM(80) About Me  (Show Source):
You can put this solution on YOUR website!
From the given points, we can calsulate the slope.
That is, the difference in y ocer the difference in x.

%287-%28-5%29%29%2F%28%28-2%29-3%29

The slope is -12%2F5

And we can plug in the slope along with one of the given coordinate sets into the point-slope formula in order to get the equation for the line.

(y - 7) = -12%2F5( x - (-2) )

(y - 7) = -12%2F5x -24%2F5

y = -12%2F5 x + 11%2F5

But since this is to be in function notation:

f(x) = -12%2F5x + 11%2F5