Determine the Solution Set
to a Linear Function by
The Slope Method
Place a triangle
with a rise = 1 and run = 2 with a ( +
) Slope on the D axis at –1
C
D
Check Solution Set with Arbitary Point: C = –2 then D = ?
Substitue C
= –2 into Linear Function and Solve
for D = – 1/2
2C – 4D = +4 +2(–2)
– 4D = +4 –4D = +8 D = –2
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Given:
+2W + 3Z = -6 Determine
Solution Set! Solve Given Function for
Z:
Now: Z = mW + b therefore m = –2/3 and
b = –2
W
Z
Check Solution Set with Arbitary Point: W = –1 then Z = ?
Substitue W = –1 into Linear Function and Solve for Z = –4/3
+2W +3Z = –6 +2(–1) + 3Z = –6 +3Z = –4 Z = –4/3
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