Solve the following pairs of linear equations by graphing. Confirm the solution using algebra.
y = a+ 1 and y = 3x + 2
Intersection at (—I, —1)
Solution using algebra Standard form: Equations are already in standard form
Combining the equations: 2x 4- 1
—x = 1
x = —1
Substituting into eql y = 2(-1)
y=-1
Check substituting into eq2
y=-1
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