SOLUTION: Suppose g is a linear function such that g(3.6) = 5.3. If the slope of g is -2.2, what is g(6.9)?

Algebra ->  Linear-equations -> SOLUTION: Suppose g is a linear function such that g(3.6) = 5.3. If the slope of g is -2.2, what is g(6.9)?      Log On


   

Question 1125400: Suppose g is a linear function such that g(3.6) = 5.3. If the slope of g is -2.2, what is g(6.9)?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The slope-intercept form is
+g+=+m%2Ax+%2B+b+
+g%283.6%29+=+5.3+
+m+=+-2.2+
+5.3+=+-2.2%2A3.6+%2B+b+
+5.3+=+-7.92+%2B+b+
+b+=+13.22+
The equation is
+g+=+-2.2x+%2B+13.22+
Given:
( 6.9, g )
+g+=+-2.2%2A6.9+%2B+13.22+
+g+=++-15.18+%2B+13.22+
+g%286.9%29+=+-1.96+