SOLUTION: Solve the system of fuctions by graphing then classify the system. f(x)= x+1 g(x)= -8x+10

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Question 389237: Solve the system of fuctions by graphing then classify the system.
f(x)= x+1
g(x)= -8x+10
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,         

Graphing

f(x)= x+1     Pts (0,1), (-1,0), (1,2)

g(x)= -8x+10  PTs (0,10), (5/4,0), (1,2) 

Lines intersect at Pt(1,2), the solution for this system of equations

Note: when the lines intersect f(x) = g(x)

 x+ 1 = -8x + 10

   9x = 9

    x = 1  Substituting x=1 into either of the equations, will give

the same f(x) and g(x) value = 2, thus the Pt of intersection (1,2)