Solve the following pairs of linear equations by graphing. Confirm the solution using algebra.
y= 1 and y=2x+ 2
Intersection at (-1/2, 1)
x = — 1/2 y=1
Solution using algebra
Standard form: Equations are already in standard form
Combining the equations: 1 —
-2x - 1
x = 112
Substituting into eql y = 1
Check substituting into eq2 y 2(-1/2) -1-2
y = —1 + 2
y = 1
Solution: x = —1/2 y =1
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